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Calculate Half Square Triangles

Enter Finished Size
for Half Square Triangle Block (IN)
(without seam allowances)

Fabric Sizes to Cut
2 at a Time Method  (How-to)
Cut squares 3 7/8 inches

4 at a Time Method  (How-to)
Cut squares 5 1/2 inches
* Calculated sizes are the minimum size squares to cut.
* It is easier to use a slightly larger size square and trim any excess. 

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