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Patchwork Tip - Half Square Triangles - Specialist Ruler

Handy Hints

Half Square Triangles using a specialist ruler.

There are many brands available of the special triangle rulers to cut half square triangles. They will all look a bit like this:

Again always use finished sizes. Add 1/2” to measurement of side A - the finished size of the side of the half square triangle 
 Cut 2 strips this size from 2 different fabrics.
Half Square Triangles
Place the strips right sides together. Straighten the edge, cut a pair of triangles with the ruler the right side up.
Half Square Triangles
Flip the ruler over to cut the next pair of triangles, note that the little black point overhangs the strip.
Half Square Triangles Half Square Triangles Half Square Triangles
Sew together using a 1/4" seam. The 'blunt' end helps to piece accurately. Half Square Triangles


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