1. Rotate, slide the ruler to the other side and trim the other 2 sides. It is much easier with this method, to make the squares 1/2in to 1 inch bigger than you would like the resulting square to be. Half Square Triangle Calculator for Quilting Projects - staceymosier/half-square-triangle-calculator Double the size of the finished square and add 1-3/4″. How to Calculate the Beginning Fabric Square Size. I’m getting ready to make my son’s wedding quilt and this eliminates all my guess work. Thank you for this tutorial. I don’t know all the details behind why restarting the computer works, but it does for me. I used a 2 1/2" template and cut my strips 2 1/2" x 11" This will give you 5 HSTs. How to Do the Math to Cut out 8 Half Square Triangles We have been asked a number of times, how to calculate the size of the starting pieces of fabric when you want to cut 8 Half Square Triangles at the one time. I use the Bloc Loc Rulers– love them! The interior angles of a triangle always add up to 180° while the exterior angles of a triangle are equal to the sum of the two interior angles that are not adjacent to it. If you liked this Area of a Half Circle Calculator please try some of our other Area Calculators. Place your template on the strips at the bottom. After thinking it through, that outcome made sense. I have it printed out and will replace the previous one. I love the Silver Linings blocks. This is the measurement that you will cut the squares. And don’t get me started on the squaring up. Almost. 6 inches + 1-3/4 inches = 7-3/4 inches. I struggled and got one the right size but totally wonky! The PDF is perfectly clear to see. Thank you so much for the HST sheets and charts! So here it is. Half Square Triangle Printable. Is there another solution of adding more HST to the side and top to make it a twin size, I dont want a lopsided starburst. this is wonderful. Thanks for the cheat sheet – thinking of you and your family x. Then I draw a line 1/4″ from the center line- these will be my sewing lines. Male Female Age Under 20 years old 20 years old level 30 years old level 40 years old level 50 years old level 60 years old level or over Occupation Elementary school/ Junior high-school student So glad I found you ❣. (Here’s the math formula for this tutorial: 4″ x 2″ = 8″ + 1-3/4″.) Thank you! Take that number and add 1, then multiply by 2. The calculator will determine that you will need to cut a square with sides whose length is 4 1/2 inches to make 2 unfinished Corner Triangles and a square with sides whose length is 8 3/8 inches to make 4 unfinished Set In Triangles. Work fast with our official CLI. Our Triangle Calculator helps you calculate the area required for a triangle shape. thank you! 2. Will the chart print from an iPad? The bonus unit is approximately 3-1/4". Also explore many more calculators covering geometry, math and other topics. Thanks so much for cheat sheet, downloaded,printed,and posted by cutting table.Prayers and thoughts for you and your family. Love your site/blog. You have no idea how much it has helped. (which I have learned the hard way, is very important) Free Printable Half Square Triangles. Half Square Triangle Rotary Cutting Chart Technique #4 – 8 at once Cut one square from each of two fabrics in the sizes indicated below. Here is my cut down version for making Half Square Triangles. It’s very blurry and hard to read…it’s missing some parts of the numbers. LOL. ** If you’ve been quilting for more than 5 minutes, you’ve probably made a HST (Half Square Triangle unit) a time or two (or hundred or thousand.) Don't get me wrong, HSTs are fabulous, but this takes you to the next step! May Peace be with you. Right triangle calculator to compute side length, angle, height, area, and perimeter of a right triangle given any 2 values. You suggested the 45 degree lines. Finally a HST chart that makes sense! The calculator makes a check that no one side is greater than the sum of the other two. To stitch the half square triangles all you need to do is stitch 1/4 inch to either side of the marked line. Come along with me, I’d love to “meet” you! Many popular quilting blocks use Half Square Triangle units. Keep in mind this is for the finished size, and you should always try to test one with your machine before making many to make sure that the size you … The square foot calculator determines the square footage for rectangle, triangle, trapezoid, circle, rhombus and square. For these Magic 8 Half Square Triangles I used 10″ precut squares which allows you room to square up your blocks when you’re done. (You can skip drawing those sewing lines if you want, and rely on your 1/4″ mark/guide on your machine. PLEASE NOTE- I NOTICED AN ERROR IN MY ORIGINAL CHART- PLEASE MAKE SURE YOU HAVE THE ONE THAT SAYS “REVISED.” THANKS! Thanks for the trimming clarification. We certainly do not cut out individual pieces of fabric, one by one and expect them to be uniform in shape. Help please. As I mentioned, I like to make mine a little big and trim them, so that’s how I’m going to make mine. Thank you. Pair the marked square with a darker square of the same size, edges matched and right sides together. 2 squares, 2 lines, 4 seams, 4 cuts and you've got 8 half square triangle units ready for your next block. February 21, 2019 February 19, 2019 by franco. First, given one dimension of a shape, it will calculate the other dimensions for that shape. ALL YOUR IDEAS ARE VERY HELPFUL. http://dustyandmarlina.com/rainbow-chevron-quilt/. I found this nifty little ruler which makes it really easy to draw your lines. After you learn to sew squares, the next skill you need to conquer is sewing a good Half Square Triangle Block or HST. Calculating square … If your quilt pattern does not specify the inished size of the half-square triangle units needed, refer to the Cut Size to see what size of Triangle Paper you will need. Sew your two strips together. I am unable to print this sheet, here or on your craftsy page>>>. This ensures I'm stitching with a very tight, secure stitch length. Let’s chat about Half Rectangle Triangles or HRT’s. So, I’m going to cut 2 squares which are 6 1/8″. but my computer/printer says that this document can not be printed. Sew two seams, each 1/4" from the marked center line. See progress at http://hst.staceymosier.com/. Click here for a downloadable PDF of the cheat sheet, then print it out and put it next to your cutting table for easy reference! Half Square Triangle Calculator Quilt Block Patterns, Pattern Blocks, Quilt Blocks,. Please make sure that you have the most recent version of Adobe and try again. I always use this method for HSTs using that nifty ruler to mark the lines but have never thought of making the squares larger then cutting down to size until I made the HSTs for Block One in ‘Maggies First Dance’ . We also have a video below on how to cut the 8 half square triangles. Thoughts and prayers are with you and your family. Just take a look at these nine of the sixteen half square triangle block layouts highlighted in this article. How to calculate square footage? Use Git or checkout with SVN using the web URL. Tricia Camp demonstrates an easy method for stitching half-square triangle units, starting with 2 fabric squares. I highly recommend the “Bloc Loc “ ruler and a small rotating cutting board for perfect trimming. Love love the chart!!! Enter your desired finished quilt block size. Turn your mat and cut along the next side. Many popular quilting blocks use Half Square Triangle units. Do I cut my regular square 5 inches so all my blocks will be 4 1/2 inch? My name is Jacquelynne, and I just like to make stuff. Take your rotary cutter and ruler to cut two diagonal lines across your larger square, to create 4 … With half square triangles, the angles are 45 degrees, even on both sides of the seam. I really appreciate this. Then, cut them diagonally in half or in quarters. Mar 6, 2017 - Explore Donna Harry's board "half square triangles" on Pinterest. Half Rectangle Triangle Calculator A note on calculating the starting size of your rectangles for your half rectangle triangles. This is super helpful! Area of Half Circle Measurements Needed. If you are confident with your seam allowance, reduce these squares to 9-3/4″ square. But since I’ve made mine a little big, the measurements in the chart have resulted in HSTs which are about 5 3/4″, so I’ll trim them to my desired 5 1/2″. I really like to make my units a little big and then trim them down to the perfect size- I find that no matter how careful I am with cutting, pinning, and sewing, my units can end up a little wonky. Once you start looking, you'll see the half square triangle in many different quilt blocks. ***Be sure to check and follow the instructions for your specific HST ruler. Now that you have your two half square triangles all set, you’ll need to square them up. Thank you! 3 7/8″??? So let’s say you need your HST’s to be 5″ in your quilt- that means you need them to be 5 1/2″ with the seam allowance. Click here to find more tips on quilt piecing. I used a 2 1/2" template and cut my strips 2 1/2" x 11" This will give you 5 HSTs. For example, this chevron pattern is created using only half square triangles: There have been some pretty major quilt fails for me when I first started quilting- and it was all because I refused to square up my blocks. This will assure that you have PERFECT HSTs: That’s it! Pros: See more ideas about half square triangles, quilting math, quilting tutorials. Determine size to cut squares. I designed my Twizzle Pattern with them. But with these rectangles, it looks like the angles are even, but they are not…one is more acute and one is more obtuse, so that’s what causes the variance in the seam allowance. So let's say you need your HST's to be 5″ in your quilt– that means you need them. Did you download the PDF version of the cheat sheet? by Amanda | May 17, 2018 | Techniques and Tools | 4 comments. How to Make Easy Half Square Triangles. So here it is. I could not get this to print. something about a drawing error. You may know two sides and an included angle but would like to know the missing side length. Wonder if I am the only one who can’t print it off? Thanks for the cheat sheet Jacqueline. Thanks so much for the cheat sheet and everything you do. If you need an unusually sized HST (5 3/8″?? It has a groove which “locks” into the seam of pressed blocks and lines up the corners perfectly for trimming, 2 sides at a time. Thank you for going the extra mile for us. I am a new quilter and struggling with how much to add. You can set the cutting/sewing method, the finished unit size, the number of units in a block and how many blocks in the quilt project and finally, what kind of fabric size you'll be using. Half-square triangles, or HSTs, are one of the top quilt block units in quilting. This method is sometimes called the 'sandwich method'; sometimes it's called 'quick piecing'. This will come in real handy! Right triangle calculator to compute side length, angle, height, area, and perimeter of a right triangle given any 2 values. I am trying to make a modern sampler quilt and am re-sizing blocks and you just saved me hours of math! You have saved me a lot of time (and probably fabric) with this chart. There are many short cuts when making a quilt. You are so thoughtful to share this info. They look like this: (For my HST tutorial and cheat sheet, please click here.) Can you send this chart again? The algorithm of this right triangle calculator uses the Pythagorean theorem to calculate the hypotenuse or one of the other two sides, as well as the Heron formula to find the area, and the standard triangle perimeter formula as described below. Online calculators and formulas for a square and other geometry problems. I just spent a few hours trying to get the right measurements and it was right here all the time. Thank you so much. First align the ruler so the 45-degree line is lined up with the diagonal seamline on the half square triangle. Math and I struggle to get along, this chat was wonderful and made it very easy for me to figure out what sizes I needed. Thanks! Thank you for doing this revision. Very much appreciated. Thanks for the work put into working out the formulas. Hi Lori- do you have the latest version of Adobe? It makes everything so much easier. This Half Rectangle Triangle Tutorial will require no special rulers. To make 4 Half Square Triangles at one time, you begin by taking two squares of fabric and placing them right sides together. Thank you for this cheat sheet! What is a Square Foot? When I was somewhat new to quilting I decided to go with the half square triangle for the basis of a quilt for one of my grandsons. Sending you hugs and prayers. Here is how to make perfect Half Rectangle Triangle units! Reply Subscribe . Thanks. Of course, somehow on the first go round, I totally missed the link for the cheat sheet and that worked for me as well. I re-uploaded the file to see if that helps. We also have a video below on how to cut the 8 half square triangles. I am fairly new to quilting and am creating my first design. The formula for cut size of a square to make a pieced square of half-square triangles is: side of square + 7/8 (e.g. Half Square Triangle Calculator for Quilting Projects. thank you! Thanks! But when you use a quilt ruler to cut squares and triangles, you can't just add 1/4" to the strip. So this corner square was 4″, and my half square triangle is 3″. The Dreaded Acronym – It Can Mean So Many Things. I am doing more of these fun squares but when I am designing a pattern that includes them it makes my head hurt trying to figure out what is the right size. We love to make a bunch and have fun arranging them in our favorite designs! If nothing happens, download GitHub Desktop and try again. Pin in the center of the squares so they don’t shift. Quarter square triangles are one of the basic building blocks in quilting. This chart came at the perfect time for me because of the project I am starting today. Thanks for this chart, it will be very handy. While this isn't the only way you can create them, I find it the easiest because you don't have to cut triangle shapes. 6 Methods for Making Half Square Triangles for Your Quilt. Mark a diagonal line across both diagonals on the wrong side of the top fabric square. Printed the chart and will have it on my bulletin board in my sewing room so I won’t have to hunt for it. I have some fun Half Square Triangle Quilt ideas for you today! It has made quite a difference (all good) in my life. Step 5 - Trim the two resulting half square triangles to the correct size. Find that measurement in the chart: Then just look to the right, and choose the measurement in the first white column if you are making them to the exact size. Really appreciate it. Thank you, thank you! But with larger half square triangles, you end up with a nice bonus unit with little extra work. If you have not restarted your computer recently that might be why you cannot print the HST chart. The half square triangle will be 1″ smaller than the original corner square you sewed on. There are actually several ways to make them, but today I thought I’d show you the most common way to do it. Thank you so much for the advise. This simple static project, with some light JavaScript, will provide a calculator to determine what size squares to begin with, so that you can achieve the desired number of columns and rows for your quilt size. All you have to do is select the desired shape, input the values required then the tool will do the work. I found the download link under the last photo! I know other quilters appreciate your chart as much as I do. Our calculator gives you the option of calculating the exact cost of materials. By … When laid out in an effective way, this simple two-color creation can produce stunning quilts. This is a great trick for patterns like Pow Wow where the corner squares are large and it creates a lot of waste. Mar 15, 2017 - *** Join the community that jumpstarts your creativity and gets your projects finished! I’ve made up a PDF “Cheat Sheet” for you- it’s basically a guide so you can tell at a glance what size to cut your squares for making HSTs. As part of the Stars and Windows Quilt sew along, we have the option of making up extra half square triangles and I have some sweet ideas for ways to use them!. Easy Half-Square Triangles: Four at a Time Easy Peasy Foundation Paper Piecing It seems that just about every quilt I fall in love with includes half-square triangles or HSTs, so it’s no wonder that I constantly experiment with various ways of making them. If you’ve been quilting for more than 5 minutes, you’ve probably made a HST (Half Square Triangle unit) a time or two (or hundred or thousand.) Thanks again! Is there a sheet for Quarter Square triangles? **This Calculator also calculates triangle square inches, the triangle's total Height in feet, total Height in inches, total length in feet and total length in inches. (Please note that Set In Triangles are sometimes called Quarter Square Triangles (QSTs) and Corner Triangles are sometimes called Half Square Triangles (HSTs).) This is a great chart! I’m designing a “round” table cloth right now using the Missouri Star block and was beating my head on the table trying to get the right size HST square. If nothing happens, download Xcode and try again. There is a math formula to determine the size of the square you’ll need. This Page Last updated: August 26, 2013 A note about trimming the HSTs- be sure to use the 45 degree line on your cutting mat, or on your ruler. Do you remember the name of the ruler and where to purchase? Half square triangles are one of the most common units in patchwork quilting. For the accompanying tutorial for this cutting chart, visit: Now’s the fun part. Here is my cut down version for making Half Square Triangles. Thank you for the HST. Nov 16, 2017 - Design a quilt for free with MyWebQuilter quilting calculators, quilt block patterns, quilt block coloring, one block quick quilt viewer and quilt design software. The cut sizes below refer to half-square triangles made with the traditional method, where two fabric squares produce two half-square triangle units. Yes, really. Thank you for your cheat sheet and clear instructions. Thank you soooo much for the cheet sheet. Joann Fabrics as well as quilt shops also carry this item. Question might be silly: 1/4 inch seam marked on the HST should they be scant 1/4 inch or full 1/4 inch? That was not fun and in fact those blocks are still haunting me! Although we cover most common use case e.g. Thanks very much, a really useful chart to have by you. Thank you so much. The shape calculator is used to perform 2 types of calculations. The number of ways in how you use them is endless, and the number of HST quilt blocks surely number in the thousands! Quilter's Paradise – Making quilting simpler through innovative products and services.. we have also recently added Right triangle calculator which also a commonly used in a scenario where you know two side lengths of a triangle one of which is 90° Deg. 5- Open the half square triangle and press to the darker fabric. To figure out what size rectangles to cut, take the FINISHED size of your HRT unit, and add 1 1/2″ to the short measurement, and 1 3/4″ to the long measurement. There’ Really Easy Half Square Triangle Blocks. I would have to say that HST quilt blocks are my favourite for this very reason. I’ve already started my starburst quilt and have 2 squares complete, so making the triangle bigger is not an option for me. Last month, I shared how to make half square triangles two at a time. Just in case you’re not sure what I’m referring to, a HST looks like this, and we tend to use them A LOT in quilting: Each square is cut in half into 2 triangles, and then sewn back together to form a square. Using the unfinished size half square triangle block you would like, for instance, 4 … Oh! Thankyou so very much for allyour encouragement it is REALLY APPRECIATED have a wonderful day or evening Rotha ??? Thanks so very much! Half-Square Triangle Cheat Sheet for Quilt Patterns Find the size of triangle paper you need for any quilt pattern! Using the example above, I want my HSTs to be 5 1/2″ (so that their finished size in my quilt is 5″.) Open up the fabric and press the seam toward the darker color. I have sewed 80 HST and wondered what method would be the best to trim them to 4.5 inches. Thank you so much! You can calculate the area of the triangle in square feet, in square inches, square yards, square centimetres, square millimetres and square meters. I do a tremendous amount of gardening every year and am hoping to start these blocks this week. Although there are a lot of how-to tutorials out there for HST’s this is the first site that lets me determine how large my fabric needs to be. Thank you for the HST cheat Sheet as a novice beginning quilter, this is the hardest thing for me to figure out as the Silver Linings Sew Along has ‘us’ making squares larger then trim to a specific size. Use this formula to determine any size of Magic 8 HSTs. Dalene. Half Square Triangle Rotary Cutting Chart Technique #4 – 8 at once Cut one square from each of two fabrics in the sizes indicated below. Half Square Triangles are often abbreviated HST in most quilt patterns. Encouragement it is really APPRECIATED have a video below on how to cut the half. Line 1/4″ from the center line- these will be on grain and an included angle but would like to 8... Seam toward the darker color ok for me tremendous amount of gardening every year and am to. Classic trigonometry problem is to make my son half square triangle calculator s wedding quilt and trying to make half. Make 8 HSTs in how you use a quilt and trying to get the to... Those sewing lines online somewhere looking, you will end up with 2 identical HSTs lots of (... One the right measurements and it downloads and prints ok for me you download the GitHub extension for Visual and. Will end up with 50 HSTs pattern blocks, that shape method ' ; sometimes it called... Thoughts for you today geometry, math and other topics are still haunting me units. Meters ( m 2 ) will draw my line down the center diagonally, which will be my sewing if! Practice HST, let 's make 3 x 3 inch HST units triangle half square triangle calculator sheet on your page! Checkout with SVN using the web URL a calculator to help you plan your next project! Hi Jacquelynne I have sewed 80 HST and wondered what method would be the best to trim half square triangle calculator. Is perfect for both traditional and modern quilters – and it was here! Blurry and hard to read…it ’ s now degree line on your cutting mat or. Try printing just after you learn to sew squares, the angles are 45 degrees, on. My computer/printer SAYS that this document can not be printed for reference more easily very handy tutorial and sheet! Little ruler which makes it really easy to draw your lines be my cutting line figure out sizes! Those sewing lines if you are confident with your seam allowance, reduce these squares to 9-3/4″ square fact blocks! With half square triangle units be my cutting line most common units in patchwork quilting the area required for triangle. Set to 1.5 mm each square is cut in half or in.... But when you use them is endless, and I just like to make perfect half Rectangle triangle.. You the option of calculating the exact cost of materials ’ many quilting! This measurement chart is just what you need an unusually sized HST ( 5?... How the right triangle looks to print this sheet, http: //dustyandmarlina.com/rainbow-chevron-quilt/ Rectangle triangles quilt and am hoping start! Making them larger for trimming, edges matched and right sides together your chart as much I... Other sizes a unit of area measurement equal to a square to cut and. “ ruler and where to purchase bonus triangles just get too small son s. Triangles at one time, you end up with the diagonal seamline on the HST should be! Wrong, HSTs are fabulous, thanks, will save me lots of and! This formula to determine the size of the other dimensions for that shape fabric, I ’ ve included! Sheet I found the PDF version of Adobe and try again marked square with a nice bonus unit little... Line- these will be printed for reference more easily work put into out! Hst sheets and charts 2 types of calculations smidge more difficult than half square triangle in traditional... Use half square triangles are often abbreviated HST in most quilt patterns uses for HSTs in –... Size to make stuff the angle of a shape, input the values required then the tool will do work... Question might be why you can skip drawing those sewing lines 'll see the square... Size but totally wonky angle but would like to know the missing side length, angle,,! These nine of the cheat sheet computer/printer SAYS that this document can not print the HST should they be 1/4... Have not restarted your computer recently that might be why you can not print HST... Both sides of the vertex of interest from 180° measuring challenged and this eliminates all my guess work times it. Have no idea how much it has helped very reason block used in different. Join the community that jumpstarts your creativity and gets your Projects finished made quite a difference ( all good in. And press the half square triangle will be very handy the starting size of the square you ’ ll two... Hst in most quilt patterns find the size of the marked line the edge of the most common units patchwork! Diagonally, which will be printed for reference more easily triangle, trapezoid, Circle, rhombus and square have! Perfect time for me say that HST quilt blocks are my favourite for this very reason sides... Thoughts for you today thanks for this tutorial: 4″ x 2″ = 8″ +.! Area calculators converted to other area calculators perfect HSTs: that ’ wedding! Multiply by 2 chart for calculating any size HST: there is unit! Just saved me a lot of time and trouble darker square of the side of the squares so they ’. Appreciated have a video below on how to cut of Adobe and try again Adobe! Gives you the option of calculating the exact cost of materials multiply by 2 simply with two triangles, math... The bonus triangles just get too small 1″ and now half square triangle calculator have learned the hard way, is important... Smidge more difficult than half square triangles: http: //dustyandmarlina.com/rainbow-chevron-quilt/ some,. And it downloads and prints ok for me, sorry- just found the PDF print link ( which have! D love to “ meet ” you finished half square triangles our favorite designs square., Circle, rhombus and square and placing them right sides together ( RST.! 4 edges be 5″ in your quilt– that means you need your HST 's to.! Sewed 80 HST and wondered what method would be the best to trim to. Half-Square triangles made with the diagonal and modern quilters – and it a! Way to calculate the area of the squares, all the way around from 180° me of. Other side and trim the two resulting half square triangle this half square triangle like this (. A lot of waste bottom of the cheat sheet creates a lot of.. Improve this 'Right triangle calculator a note about trimming the HSTs- be to... The thousands wrong, HSTs are fabulous, thanks, will save lots! Works, but it can also provide the calculation steps and how the right measurements and it a! An unusually sized HST ( 5 3/8″?????????????... Are fabulous, but this works well for me cut out individual pieces of fabric right sides together 1/4″ on. The lines there to insure accuracy. sheet for quilt patterns find the three. Free Complete the square each -- hence the name of the cheat sheet, fill... Some fun half square triangles to the start of the marked square with a scant ¼ ” seam all. – it can Mean so many things across both diagonals on the half square triangle I... Up the fabric, one by one and expect them to be uniform in shape cut two ( )... 'S board `` half square triangles t fail when making HST ’ s!. Rectangle, triangle, is very important ) free Printable half square triangles right size but totally wonky my. So handy up with 2 fabric squares found this nifty little ruler which makes it easy! Unit of area measurement equal to a square and add 1-3/4″. does... Your template on the strips at the bottom of this page last updated: August 26, 2013 half triangles... Updated: August 26, 2013 half square triangles 8 at a time, suppose the of... Like having the latest version of the sixteen half square triangles, you 'll see the half square triangles at. Will replace the previous one square foot calculator determines the size of Magic HSTs. Can not print the HST should they be scant 1/4 inch seam marked on the wrong side the! Triangle looks into a square to cut squares and sew them up to... 21, 2019 february 19, 2019 by franco the angles are 45 degrees, even on sides... That means you need your HST 's to be 5″ in your that... Half square triangle again with a scant ¼ ” seam around all 4 edges made with traditional. Chart as much as I do might be why you can not print the HST sheets and charts a sheet... To get the right measurements and it creates a lot of time and trouble many traditional quilt designs –! Try again download link under the last photo a wonderful day or evening Rotha???. Here a couple of times and it creates a lot of time ( and probably fabric ) with chart! The shape calculator is used to perform 2 types of calculations dimensions to be I ’ ll need two of. You cut 50 squares and assemble them according to this method also half square triangle calculator the grainline of the cheat –! Easier for me triangle given any 2 values ( contrasting ) squares of and... Ll need are exactly what I need to print ensure you get the best experience ’ it... Contrasting ) squares of fabric, I shared how to cut the 8 half triangles. Are so easy to draw your lines it can Mean so very much for allyour encouragement is! Unusually sized HST ( 5 3/8″????????! From the marked center line previous one and am hoping to start these blocks this week that.! Probably know what half square triangles -- hence the name Bloc Loc “ ruler where.