Question

what is square pyramid?can a polyhedron have 10 face ,20edge, 15 vertics?​

Answer 1

●In geometry, a square pyramid is a pyramid having a square base.

●If the apex is perpendicularly above the center of the square, it is a right square pyramid, and has C₄ᵥ symmetry.

●If all edges are equal, it is an equilateral square pyramid, the Johnson solid J₁.

Answer 2

chect that :f-e+v=2

10-20+15=2

25=2

12.5