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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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.
I posted about a great online calculator here https://www.quiltingboard.com/links-...r-t292774.html
Nancy in western NY
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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?
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.
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.)
Last edited by bearisgray; 05-19-2018 at 04:14 AM.
Additional drawing:
Is this what you are trying to do? http://frugalquilting.com/square_in_...ting_block.htm
Sew a Little, Love a Lot & Live like you were dying!
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!
I also bookmarked this! Thank you!
Anyone is welcome to copy anything I post on this board.
I sometimes need to draw things out to "get" them -
and sometimes I can "explain" in a drawing better than I can explain in words.
If you use two squares the same size, and cut one twice on the diagonal, there will be no 1/4" seam allowance on the block so I cut the second square an inch larger, and re-cut twice, though it means trimming down later.
I would do the same.