Find the volume of a sphere diameter 21 cm
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 4851 cm3.
Diameter = 21 cm
The volume of a sphere = (4/3)πr3
Radius = Diameter/2 = (21/2) cm
ATQ -
The volume of a sphere = (4/3)πr3 = (4/3) × (22/7) × (21/2)3 = 4851 cm3