Suggest a tetrahedron which has its vertices (x,y,z) at (0,0,0), (1,0,0), (0,1,0) and (0,0,1).
a) Compute the unit normal vectors of all the faces of the tetrahedron using Method of Normal Vectors.
b) Calculate the unit normal vectors of all the faces of the tetrahedron using Newell's Method.