Question

The faces of a triangular pyramid consist of:

• A. Two triangles and three rectangles
• B. Two rectangles and three triangles
• C. One square and three triangles
• D. Four triangles

Answer 1

The correct option is D Four triangles

The triangular pyramid has a triangle base.

And other faces attached with apex are triangles.

With every side of base, one triangle face is being created and gets attached to apex.

So, there will be $3$ triangles faces except base.

Hence, faces of a triangle pyramid consists of four triangles.