The radius of a sphere is 4.2 cm. What is the volume of the sphere?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 310.46 cm3.
Radius r = 4.2 cm
Volume = 4/3πr3
⇒ V = 4/3 × 22/7 × 4.2 × 4.2 × 4.2
⇒ V = 4 × 22 × 0.6 × 1.4 × 4.2
⇒ V = 310.46 cm3