Icosahedron from triangular flat unit (Tomoko Fuse)

This is a modular icosahedron consisting of 50 units, where 20 of the units are equilateral triangular flat units. This variation unit is in the “Unit Polyhedron Origami“ book of Tomoko Fuse. Paper: 7 x7 cm, 20 units (to form faces of the icosahedron) Paper: 3.5 x 3.5 cm, 30 units (edges: to join the faces of the icosahedron) Total: 50 units Instagram: @mathsoforigami #origami #origamitutorial #origamicraft #paperfold #paperfolding #math #cube #cubecraft #sonobecube #modularorigami