Level 1: Stage 2
What you need
(3 pairs of triangle segments).
Equilateral triangle faces: 6
The triangular bipyramid (or dipyramid) is, as its name implies, two (bi-)
Level 1: Stage 2
What you need
(3 pairs of triangle segments).
Equilateral triangle faces: 6
The triangular bipyramid (or dipyramid) is, as its name implies, two (bi-) pyramids combined. It is known as the Johnson solid number 12, or in short, J12.