The surface area of a cube is 54 square decimeters. What is the sum of all the edges of the cube?

The surface area of a cube is 54 square decimeters. What is the sum of all the edges of the cube?


The base area of the cube is 54 △ 6 = 9 (square decimeter), and because of 3 × 3 = 9, its edge length is 3 decimeters, and the total edge length is 3 × 12 = 36 (decimeter). A: the sum of all edge lengths of the cube is 36 decimeters



The surface area of a cube is 54 square centimeters, and its edge length is () centimeters
A. 3B. 9C. 6


Because 3 × 3 = 9, the edge length is 3cm. A: its edge length is 3cm



The total edge length of a cube is 72 cm, its surface area is () square cm, and its volume is () cubic cm


72 / 12 = 6 surface area: 6x6x6 = 216 volume: 6x6x6 = 216



The sum of the edge lengths of a cube is 72 cm. Find their surface area


Therefore, the surface area s = 6 * 6 * 6 = 216