What is are Primitive Shapes?

They are the shapes that a the basic hope drawing shapes in 2D and 3D. 

2D shapes: Triangles, Polygons, Points, LInes, Points and Circles. 

3D shapes: Cube, Pyramid, Cylinder, Sphere, Cone and Torus.

Form theres you can make all different shapes with they commission between two or more the shapes.