Find the radius of sphere whose surface area is 616cm
Answers
Answered by
3
Surface area of sphere = 4πr^2
616 = 4πr^2
616 = 4*22/7*r^2
616*7/ 4*22 = r^2
r^2 = 616*7/4*22
r^2 = 28*7/4
r^2 = 7*7
r^2 =49 (take root on both numbers)
√r^2 = √49 (7*7)
r = 7
Radius = 7 cm
Hope it helps
Please mark this answer as brainliest
616 = 4πr^2
616 = 4*22/7*r^2
616*7/ 4*22 = r^2
r^2 = 616*7/4*22
r^2 = 28*7/4
r^2 = 7*7
r^2 =49 (take root on both numbers)
√r^2 = √49 (7*7)
r = 7
Radius = 7 cm
Hope it helps
Please mark this answer as brainliest
Similar questions