Computers regularly use polygon meshes to model three-dimensional objects. most polygon meshes are a
collection of triangles that approximate the shape of a three-dimensional object. if we define a face of a polygon
mesh to be a triangle connecting three vertices of the shape, how many faces at minimum do the following shapes
require?
a. a cube
b. a pyramid with a square base
c. a tetrahedron
d. a rectangular prism
e. a triangular prism