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calculating setting triangles

calculating setting triangles

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Old 04-20-2009, 10:34 PM
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A few or months ago someone addressed the issue of how to calculate the size of setting triangles for a square in a square block. I cannot find that particular topic on the board, so I am asking it again. I have an 8 1/2 inch block. Need to know the size square to cut diagonnally to create the setting triangles. Wish I remembered my geometry lessons that, at one time, I was a whiz. Those days are gone. Please help.
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Old 04-21-2009, 12:15 AM
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center sqaure is 4-1/2" x 4-1/2"

to make the triangles, make squares of 4-7/8" x 4-7/8" and cut them once on the diagonal.
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Old 04-21-2009, 01:11 AM
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This link could be a handy reference for you.

http://quiltville.com/onpointmath.shtml
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Old 04-21-2009, 01:20 AM
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Thanks from me too.... this stuff always gives me a headache. That's why I got EQ, so I didn't have to figure it out! lol
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Old 04-21-2009, 07:09 AM
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Originally Posted by BlueChicken
Thanks from me too.... this stuff always gives me a headache. That's why I got EQ, so I didn't have to figure it out! lol
Me too. Used to be a wiz at math. Now I need EQ to help me.
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Old 04-21-2009, 03:53 PM
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if the center square is 4 1/2 x 4 1/2 i cut squares at 5", cut in half diagonally and trim the extra off. it's too bothersome for 1/8's on the outside edges where you have fudge room.
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Old 04-21-2009, 04:04 PM
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actually, my communication was not clear. My center square is 8 1/2", not 4 1/2".
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Old 04-21-2009, 04:09 PM
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And, to add to that--THANKYOU for all your help. The response surprises and delights me!
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