Find the surface area of a spherical vessel of diameter 42 cm. (Use π = 22/7)
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 5544 cm2.
Surface Area = 4πr2
Surface Area = 4 × 22/7 × 212 = 4 × 22/7 × 441 = 5544 cm2