(a) A reguar tetrakiedron Aus four trangular faces, all equitateral triangles. The tetrahedron rests on one face, wth the other three faces meeting at a vertex, (think of a tringular prratid.) The for the coss of a pait of tetrahedra. (Let 1, 2 stand for the outcome of a one foce down on the first tetrahedron and a two face down en the second betrahespan. select at enat apply) Find each probabitity for the boseng of two tetrahedra. (b) Prodd number face doen on both) (c) Aleven number face down en first tetratedron or 2 face down on botb) (4) Arcoces down wim to 2 ar 1 face down ton the second tetrahedroo) (e) Pffaces down sum to 4 or faces down are boeh 2).