U3A Block 4a

This time the isosceles triangle unit serves as an introduction to foundation piecing. The HST's were cut from 4 7/8ths squares cut diagonally across. The formula is: add 7/8" to the finished size HST square.

Finished 12" block

Reverse showing papers left in

FP patterns



Placing first shape face up on reverse of drawn pattern
then second shape face down right sides together.

Checking placement by holding up
 to the light.

Adding final shape and pressing. The unit needs to
be trimmed to 4.5" unfinished size.

I find freezer paper makes very handy templates
to aid cutting.