Question

which regular polyhedron is a combination of 2 square pyramids ​

Answer 1

HERE IS UR ANSWER DEAR

square-based pyramid has 5 faces, 4 equal triangles and a square. An edge is a straight line where two faces of a solid shape meet.

Answer 2

There are five convex regular polyhedra, known as the Platonic solids, four regular star polyhedra, the Kepler–Poinsot polyhedra, and five regular compounds of regular polyhedra:

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,[1] the Johnson solid J1.

Square pyramid

Type

Johnson

J92 – J1 – J2

Faces

4 triangles

1 square

Edges

8

Vertices

5

Vertex configuration

4(32.4)

(34)

Schläfli symbol

( ) ∨ {4}

Symmetry group

C4v, [4], (*44)

Rotation group

C4, [4]+, (44)

Dual polyhedron

self