sak658

I have a 6-1/2 inch block that I want to sew a half square triangle on each side of the block..what size block do I need to cut for the half square triangles that will fit the 6-1/2 " block..I know there is someone that can tell me right off the top of their heads...me not so much...thanks so much...

Scissor Queen

Cut the squares 7 inches and square up the HST to 6.5.

nativetexan

http://www.generations-quilt-pattern...triangles.html

http://quilting.about.com/od/quiltse...ngtriangls.htm

sak658

Thanks so much for all your help...I think I got it now...

dunster

See how you ask a math question and get several answers? LOL

The correct answer, (because I checked it with EQ7), is to cut 2 squares at 5 1/8 inches and slice in half diagonally. That leaves a little wiggle room, not much. This block is much easier to paper piece!

Sheepshed

Dunster thank you so much.. I worked it out in EQ5 and your answer agrees with my EQ too. I have NO idea why the calculator in the link above came up with such a different answer. I will ask Patrice to remove the above two posts I made. Thanks so much for catching it Dunster !

sak658

Thanks Dunster...that's what I came up with by just kept measuring and I finally got the right size square...all of those sites were way off...

Scissor Queen

All those sites were way off because you were asking for half square triangles instead of square in a square. They're not the same thing at all. A half square triangle is one square with half one fabric and half the other fabric seamed on the diagonal.