Question

An Octagonal based pyramid has how many edges

Answer 1

• 23 edges
• An octagonal pyramid has nine faces: eight are triangular faces and one face is a regular octagon. It also has 23 edges and nine vertices. The topmost corner that connects all the faces is called the apex. Any pyramid whose regular polygonal base has n sides will have n+1 faces, 2n edges and n+1 vertex.