Question

a spherical ball is divided into two half if the TSA of each half is 462 CM square find surface area of the sphere​

Answer 1

Step-by-step explanation:

Curved surface area of the spherical ball = 2πr²

⇒ 2*3.14*r² = 56.57

⇒ r² = 56.57/(2*3.14)

⇒ r² = 9 (Approx)

⇒ r = cm

Volume of the spherical ball = 4/3πr³

= 4/3*3.14*3*3*3

= 113.04 cu cm