Find the area of a rhombus with diagonals that measure 16 cm and 20 cm

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b