a, b, c - length of edges of a base. H - height. The pentagon prism has 7 faces, 15 edges, 10 vertices. Angles in pentagon prism. The pentagon right prism has in the base regular pentagon. The volume and the surface find in the same way as all prisms: V = A_bH, S = 2A_b + A_l. H - height, A_b - base area (pentagon), A_l - lateral surface area (sum of areas of rectangles).