If the radius of the circle is increased by 4 times, then its area will increase by … times
| December 11, 2020 | education
Answer: 16 times
Explanation:
The area of the circle is found by the formula: S = nR2 (pi * R squared)
We can take radius 4, then: S = nR2 = n16
Now we will increase the radius by 4 times, then: S = nR2 = n (4 * 4) 2 = n256
256/16 = 16, so the area will increase 16 times
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