Helix Triangles/Set Squares 10" 45° & 11.5" 30°/60° Write a review | Ask a question by Helix Sale $6.50 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This set of two triangles features imperial and metric measurements. The 30/60/90 degree triangle has a 5? side and a 23cm (about 9?) side, and the 45/45/90 degree triangle has a 6 side and a 16.5cm (6.5) side.
