How to find faces,vertices,edges etc of the shape?
Each of these solids is made up of polygonal regions which are called its faces; these faces meet at edges which are line segments; and the edges meet at vertices which are points.
To find the numbers of faces, edges and vertices of a shape, you need to visualise them. Consider the following triangular prism.
You may observe that the number of faces, edges and vertices of the triangular prism are 5, 9 and 6 respectively.