Three dimensional geometry

Introduction to three dimensional geometry: Three dimensional shapes have 3 dimensions - length height and depth .They are of solid shapes and have faces , vertex (vertices's) and edges . Face or plane is a flat surface , vertex is the corner of a solid shape.The meeting lines of the faces of a 3 dimensional shape meet is called the edge. 

I will provide you a link on geometry theorems and constructions

Here you can learn the basics of geometry.

Examples of 3 dimensional shapes:cube , prism , pyramid , cone , cylinder and sphere are examples of 3 dimensional shapes.A prism having a triangle base is known as triangular pyramid .