A cylinder has radius 4 and height 10. If the radius is tripled but the height stays the same, by what factor does the volume increase?
A3
B6
C9
D27
Explanation
📌 Step 1: Recall how dimensional changes affect volume V = πr²h When r is multiplied by k (and h stays the same): New V = π(kr)²h = k²πr²h = k² × original V