If the height of a cylinder is doubled while keeping the radius the same, how does the volume change?
Show answer & explanation
Correct answer: A
Explanation
Volume of the cylinder V = πr²h
Here, the radius r remains the same, so πr² remains constant.
If the height h is doubled, the new height = 2h
New volume V' = πr² × 2h
V' = 2πr²h
V' = 2V
Therefore, the volume of the cylinder will double.