If the radius of the circle increased 4 times, then its area increased should be?
- 8 times
- 12 times
- 16 times
- none of these
Explanation
Let's consider the radius is r and therefore the Area will be πr².
Now the radius is increased by 4 times than the Area would be.
π(4r)² or the area would work to 16 times (4²=16).
Last updated on 12 NOV 2026
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