Question

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.

Answer 1

Answer:-

since curved surface of half of the spherical ball = 56.57 cm2

∴ 2πr2 = 56.57

⇒ r2 = 56.57 / 2 × 3.14 = 9

⇒ r = 3 cm

Now, volume of spherical ball = 4 / 3 πr3

= 4 / 3 × 3.14 × 3 × 3 × 3

= 113.04 cm3