Question 1
If the radius of a sphere is 2r, then its volume will be:
A) 43πr3
B) 4πr3
C) 83πr3
D) 323πr3
The answer is D.
Given, radius of a sphere = 2r
Volume of a sphere =43π(Radius)3
=43π(2r)3=43π.8r3
=32πr33 cubic units [∵radius=2r]