# What The Volume Of The Cube

The whole surface of a cube is 150 sq.cm. Then the volume of the cube is

- 125 cm3
- 216 cm3
- 343 cm3
- 512 cm3

**Answer: (1) 125 cm ^{3}. **

**Explanation:-**

The whole surface area of a cube = 150 sq.cm. (Given)

Formula-

The whole surface area of cube = 6a

^{2 }Where, a = side of cube

= 6a

^{2 }= 150

a

^{2}= 150/6

a

^{2}= 25

a = 5 (square root of both side)

Formula-

The volume of cube = a

^{3}

Where, a = side of a cone.

Then, the volume of cube = 5

^{3}

= 5 x 5 x 5 = 125 cm

^{3}

Hence, the volume of the cube is 125 cm

^{3}.