Find the sum of the areas of all faces of a rectangle of a parallelepiped if its volume is 720cm3

Find the sum of the areas of all faces of a rectangle of a parallelepiped if its volume is 720cm3 and two edges are 15cm and 24cm.

Since the volume of a rectangular parallelepiped is equal to the product of its length, width and height, we find the third edge: 720 / (15 * 24) = 720/360 = 2 (cm);

Find the area of all faces:

15 * 24 * 2 + 15 * 2 * 2 + 24 * 2 * 2 = 876 (cm sq);