The surface area of a sphere is 2464 cm3 . Find the radius of the sphere. [Use π = 22/7 ]
Show answer & explanation
Correct answer: A
Explanation
The correct option is option 1 i.e. 14 cm.
The surface area of a sphere = 4 π r2
Surface Area = 4 π r2
⇒ r2 = (Surface Area)/4 π
⇒ r2 = (2464 × 7)/88
⇒ r2 = 28 × 7
⇒ r = 7 × 2 = 14.
Hence the radius of the sphere is 14 cm.