What will be the surface area of the sphere having 5.4 cm radius?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 116.64π cm2 .
Surface area of sphere = 4 × π × r2
= 4 × π × (5.4)2
= 4 × π × 29.16
= 116.64π cm2