Question

the surface area of a sphere is 5544 CM square find its diameter

Answer 1

Hlo
here is ur answer..

surface area of sphere = 4πr²
4πr² = 5544

4 × 22 / 7 × r² = 5544

88 / 7 × r² = 5544

r² = 5544 × 7 / 88

r² = 63 × 7

r² = 441

r = √441

r = 21

diameter = 2 × radius

diameter = 21 × 2 = 42cm✔✔

hope it helps..

Answer 2

surface area of a sphere=4πr^2
thus,...... 5544=4πr^2
πr^2=5544/4
=1386
22r^2/7=1386........(π=22/7)
r^2=1386x7/22
=441
thus,.. r=21....... (taking square root)
diameter=2r=2x21=42cm