The unpainted wooden model is a triangular prism with three rectangular sides and a triangular base and top. It separates into three pyramids of equal volume; two of these are identical. A diagram of ...

The unpainted wooden model of the frustum of a triangular pyramid has three trapezoidal sides and a triangular top and base. It is dissected into three pieces. A paper label attached to one side reads ...

Triangular prism. Triangular prisms have 5 flat faces. 2 are triangle shaped and 3 are rectangle shaped. Everyday things that have the shape of a triangular prism include a tent and a slice of cake.