Question

If the perimeter of each face of a cube is 32 cm, find its lateral surface area. Note that four faces which meet the base of a cube are called its leteral faces.

Answer 1

Given,

Perimeter of each face of a cube = 32 cm

Let each edge will be = a cm

So,

4a = 32

= a = \(\cfrac{32}4\) = 8 cm

Lateral surface area of cube = 4a² = 4 × 8² = 256 cm²