The sum of the edges is a cube of 72 cm in length

The sum of the edges is a cube of 72 cm in length

The total length of the prism is a cube of 72 cm, and its surface area is (1:1) compared with its volume
The total edge length of a cube is 72 cm, and the edge length is 72 / 12 = 6
Surface area = 6 * 6 * 6 = 216
Volume 6 * 6 * 6 = 216
So the ratio of surface area to volume is 1:1

The total edge length of a cube is 72 cm, and the surface area of the cube is ()

The six faces of a cube intersect each other, with a total of 12 sides. In this way, 72 / 12 = 6 cm, and the side length of each face is 6 cm. If the area of a face is 6 × 6 = 36 cm, then the surface area is equal to the sum of the areas of the six faces, which is 36 × 6 = 216 cm