quarter square triangle measurement help

Well, The basic formula is the sum of the squares of the 2 perpendicular edges equals the square of the hypotenuse. (a squared plus b squared = c squared) You know c =12". So 2 times a squared = 144, a squared = 72, a= 6 time the square root of 2, or approximately 8.4 inches. (actually a tiny bit more than that.)

HTH, Pati, > Okay... Trying to make something (out of pvc, not out of fabric) with

If you want to know why, read on:

This is PVC, I'm assuming no seam allowance?

The center of the the assembled square has right angles on all the triangles, and the two bias edged are the same length. Call this bias edge length a. Then Pythagoras (great mind!) tells us that

If you want seam allowances, we'll try again!

HTH, Hanne

You saved me! Thanks! My mind just wasn't working at all at all.... I am saving this email :D

maybe when all this is done i can go make some of those criss cross coasters and get my sewing vibes back and make some gifts at the same time.

Thanks aga>> Okay... Trying to make something (out of pvc, not out of fabric) with

THANK YOU !!! am saving these instructions :D hopefully I can get to sewing soon. Been a long long time.

The long side of a half square triangle (right angle, short sides the same length) will always be 1.414 times the length of a short side.

Julia > Okay... Trying to make something (out of pvc, not out of fabric) with

I thought I had something like that written down somewhere but couldn't find it! Thank you! I am saving all of these emails for my self and for use in the next few years with my kiddos

Kellie