1. The problem statement, all variables and given/known data Referring to the parallelepiped in Question 3 in which vertices E,F,G,H are respectively the diametrically opposite corners to A,B,C,D . Find the volume, in cubic units of the solid with seven plane faces BGD,BCD,GFD,BHG,GHEF,EFGC,BHEC 2. Relevant equations 3. The attempt at a solution I'm not really understanding what it is asking me. I understand finding volumes. Is this telling me to find the volume with each plane face? For instance, BGD. I could make an origin out of F which is diagonal to B and maybe do the volume of a tetrahedron. I guess I don't understand what it is asking me.