How do you knit a right triangle?

How many stitches do you need for a triangular shawl?

Construction of a Bottom-Up Triangle Shawl

A triangle shawl that starts at the bottom point begins by casting on a few stitches (just three is enough, but you could certainly cast on more if you like), knitting each row, and working increases along both edges.

How long should a triangle shawl be?

Yardage

LENGTH FROM CENTER-BACK NECKLINE TO TIP OF TRIANGLE
YARN TYPE 36 – 40” full-length shawl 18” neckerchief
Lace weight 1250 – 1525 yards (1150 – 1400 m) 300 yards (275 m)
Fingering weight 1000 – 1250 yards (925 – 1150 m) 250 yards (225 m)
Sport / DK weight 900 – 1100 yards (825 – 1000 m) 225 yards (200 m)
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