Can you see that a triangular prism has 5 faces. It has 2 triangle faces and 3 rectangle faces. When you have the net of a 3D shape, look carefully at the shape of each face and the number of ...

The model has three squares faces around a triangular base. Three equilateral triangles rise from the other end to meet at a vertex. Hence the total number of faces is four equilateral triangles and ...