Question

The volume of a cube is 64cm3 .Its surface area is

Answer 1

HEY FRND HERE IS UR ANS....

VOLUME OF CUBE= 64cm^3

a^3=64

a^3=4^3

a=4

so, we got the side of cube ....

Now,

SURFACE AREA OF CUBE = 6a^2

6×(4)^2=6×16

=) 96. Ans


HOPE IT HELPS YOU....✌✌


THANKYOU SA@#

Answer 2

Given:

The volume of a cube =  64 $cm^3$

Let the side of a cube = a cm

We have to find, the surface area of a cube = ?

Solution:

We know that,

The volume of a cube = $a^{3}$

∴ $a^{3}$ = 64

⇒ $a^{3}$ = $4^{3}$

⇒ a = 4 cm

The side of a cube = 4 cm

∴ The surface area of a cube = 6$a^{2}$

= 6 × $4^{2}$ $cm^2$

=  6 × 16 $cm^2$

= 96 $cm^2$

Thus, The surface area of a cube = 96 $cm^2$