POLYHEDRON AND THEIR TYPES

Hello Everyone, In today's post we will look into what are polyhedron and their types....

POLYHEDRON

A polyhedron is a solid whose surfaces are made up of polygon faces. Thus closed surfaces made up of flat surfaces and straight edges are called POLYHEDRON.
For example Triangular Pyramid.

TYPES OF POLYHEDRON

 There are two main types :

1. CONVEX POLYHEDRON
2. CONCAVE POLYHEDRON

CONVEX POLYHEDRON

If in any polyhedron, the line segment joining any two points on its surface lie entirely inside or on the polyhedron.

CONCAVE POLYHEDRON

A concave polyhedron is a polyhedron with the property that there exist two points inside it such that the line segment drawn between them contains points not in the polyhedron. In other words a polyhedron is concave when it is not convex.