Squares and triangles question
If I have a square and I want to put a triangles on each side how do I come up with the proper measurements for the triangle? Any help with this would be appreciated.
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I posted about a great online calculator here https://www.quiltingboard.com/links-...r-t292774.html
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What are you trying to make? Do you have a pic? I guess it would depend on if you want equilateral or iscosiles (omg-my mind went a blank with the spelling of this word!)triangle?
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Jenny Doan has this in one of her u-tube tutes. What ever size of the square that you want to add triangles to, just say 61/2 in. For triangle color cut the same size square. Cut from corner to corner both ways making 4 triangles. Add to square and trim.
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I resort to graph paper.
I draw the "finished size" of the square and triangle on graph paper - then add seam allowances to my drawings. Then I measure my drawings - I would probably cut them out and glue them to template plastic. One can cut the triangles one at a time, as half-square triangles, or as quarter-square triangles. "How" one cuts the triangles is determined by the fabric available, and how you want the grain lines on the finished item. For the drawing on the bottom - and you want to cut the triangles as QSTs from a square - The (theoretical) formula is: Center square: finished size plus 1/2 inch Square to cut QSTs from: finished size of side of center square plus 1-1/4 inches (I would cut them at least 1-3/8 inches) Example: Center square finishes at 4 inches - cut square 4-1/2 inches Triangles - cut square 5-1/4 inches to cut into QSTs (I would cut my square at least 5-3/8 inches and trim.) |
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Additional drawing:
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Originally Posted by grandmahoney
(Post 8060778)
If I have a square and I want to put a triangles on each side how do I come up with the proper measurements for the triangle? Any help with this would be appreciated.
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Originally Posted by Barb in Louisiana
(Post 8061025)
Is this what you are trying to do? http://frugalquilting.com/square_in_...ting_block.htm
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Originally Posted by bearisgray
(Post 8060822)
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Thank you Ladies this was a big help. I am trying to teach my sister how to quilt and I always use a pattern so when she ask me this question I didn't know. But now I will be able to help her and we both will be learning! Thank you all for your help!
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