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A pentahedron. One example is a quadrilateral based pyramid.
the pyramid is a solid triangle. aka pyramid. A cube is well a solid square that is 3D. So is a pyramid.
The volume for any pyramid = 1/3*base area*perpendicular height
The solid commonly called a dodecahedron is not a solid pyramid but the name simply means a solid shape with 12 faces and so, a pyramid on a 11-sided polygonal base will be a dodecahedron.
for example, a trapeziodal pyramid of ABCDEFGJ. With a height H . Volume is area of the base EFGJ which is half (a + b)h where h is the length between the two parallel lines. Therefore the volume is the area of the base times the heigth H