Question

If the area of the base of one cylinder is 452.16 square units, and the radius of another cylinder is 12 units, which additional fact must be true for the volumes of the two cylinders to be equal? (use = 3.14)

Answer 1

Using 3.14 for pi, the radius of the first cylinder is computed as
  r = √(A/π) = 12

Since the base radii are the same for the two cylinders, their heights must be equal for them to have equal volume.