Find the area of the largest face of a rectangular parallelepiped if its volume is 480 cm3 and two edges

Find the area of the largest face of a rectangular parallelepiped if its volume is 480 cm3 and two edges are 8 cm and 20 mm.

A rectangular parallelepiped is a parallelepiped with each face represented by a rectangle.

Its volume is determined by the formula:

V = a * b * c. First of all, we find the length of the unknown edge, if the other dimensions of such a figure are 8 cm and 20 mm (2 cm), and V = 480 cm³:

a = 480: 8: 2 = 30 cm.

The area of its face is calculated by the formula for the area of a rectangle:

S = a * b. Let’s find its value for the largest face:

S = 8 * 30 = 240 cm².