Q:
# How Many Faces Does an Octahedron Have?

**Octahedra have eight faces.** The answer to this question actually lies in the shape's name because the prefix "octa-" means "eight."

An octahedron is a three-dimensional polyhedron with eight faces. All the faces on an octahedron will be congruent. The octahedron is one of a group of five polyhedron shapes known as Platonic solids, and it is the only one in the group with eight sides. A regular octahedron also has six vertices and 12 edges. A transparent model of an octahedron with all its correct vertices and edges will have three interior diagonals.

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Q:
## What Is a Rectangular Pyramid?

A: A rectangular pyramid is a pyramid that has a rectangle as the base and the rest of the faces are composed of triangles. A pyramid is named based on the sh... Full Answer >Filed Under: -
Q:
## How Many Sides Does a Cylinder Have?

A: A cylinder has three faces: two circular bases with one rectangular lateral area between them. Because a cylinder is a curved figure, the term "sides" is n... Full Answer >Filed Under: -
Q:
## How Many Vertices Does a Sphere Have?

A: A vertex is a corner on a polygon, polytope or polyhedron, and when faces, facets or edges of an object come together, a vertex forms; however, because a s... Full Answer >Filed Under: -
Q:
## How Many Faces Does a Rectangular Prism Have?

A: A rectangular prism has six faces. Unlike many other prisms, the faces on a rectangular prism are all rectangles. For instance, a trapezoidal prism has two... Full Answer >Filed Under: