Math CentralQuandaries & Queries


Question from Craig, a parent:

Can you help with this question:
Write the names of the faces and the number of each kind of face on a triangular pyramid?


A pyramid has vertices, edges and faces. The base of a triangular pyramid is a triangle. I have drawn one below and labeled a vertex, an edge and a face.

triangular pyramid

Each f the faces is a triangle. How many are there?

A rectangular pyramid, for example the green pyramid below, has a rectangle as its base and the remaining faces are triangles.



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