calculate the surface area of a sphere of radius 7cm [Take π = 22/7]
-
A.
86cm2 -
B.
154cm2 -
C.
616cm2 -
D.
1434cm2 -
E.
4312cm2
Correct Answer: Option C
Explanation
Surface area of a sphere = (4pi r^2)
= (4 times frac{22}{7} times 7 times 7)
= (616 cm^2)