If the radius of a cylinder is halved, what happens to its volume (assuming height remains constant)?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Volume becomes one-fourth
Volume of a cylinder = πr2h
If radius is halved, new radius = r/2
New volume = π(r/2)2h = πr2h/4
Therefore, the volume becomes one-fourth of the original volume.