Q15 of 76 Page 5

Find the value of a cube, one face of which has an area of 64m².

Area of one face of cube = 64 m² (Given)

Let length of edge edge of cube = a metre

Now, volume of cube = a³ =

Prove that if a number is trebled then its cube is 27 time the cube of the given number.

What happens to the cube of a number if the number is multiplied by

(i) 3?

(ii) 4?

(iii) 5?

Find the volume of a cube whose surface area is 384m².

Evaluate the following:

(i)

(ii)

Find the value of a cube, one face of which has an area of 64m2.