Calculate the product moments of the following eight laminas, each of mass M, with respect to horizontal and vertical axes through the origin, and with respect to horizontal and vertical axes thr...Calculate the product moments of the following eight laminas, each of mass M, with respect to horizontal and vertical axes through the origin, and with respect to horizontal and vertical axes through the centroid of each. (We have just done the first of these, above.) The horizontal base of each is of length a, and the height of each is b.