Question

The diagonal of a cube is 83 cm. The inner surface area of the cube is 216 sq. Cm. If the sides of the cube are of uniform thickness t cm, find t.

Answer 1

Hlw mate

Let the edge of the cube be a.

so, the diagonal √3a=8√3

=> a=8

Surface area = 6a²=6x8x8=384cm²
volume=a³=8³=512cm³


Hope it helpful