1.

The total surface area of a cube is 108 cm2. Find the volume of the cube?1. 50√22. 54√23. 48√24. 56√2

Answer» Correct Answer - Option 2 : 54√2

Given:

Total surface area of cube = 108 cm2

Formula used:

TSA of cube = 6a2

Volume of cube = a3

Calculation:

Let, the side of the cube be ‘a’

∵ TSA of cube = 6a2

⇒ 108 cm2 = 6a2

⇒ a2 = 108/6

⇒ a2 = 18 cm2

⇒ a = √18 = 3√2 cm

∴ Volume of cube = a3

= (3√2)3

= 54√2 cm3



Discussion

No Comment Found

Related InterviewSolutions