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

Given:
The volume of the rectangular parallelepiped is 480 cm3.
The first rib is 8 centimeters long.
The second rib is 20 millimeters.

Let’s convert millimeters to centimeters:
20 mm = 2 cm.
Let’s calculate the size of the third edge of this figure:
480: 8: 2 = 30 centimeters.
The largest face of the box with the largest edges.
Let’s calculate its area:
30 * 8 = 240 cm2.
Answer: the largest edge covers an area of 240 cm2.