The radius of a circle increased by 4%.find the percentage increase in its area
Solution (By Examveda Team)
Increase in area =((scale factor)2 - 1) * 100
4 percent increase = 1.04 scale factor
(1.04)2 = 1.0816
(1.0816 - 1) * 100 =
(0.0816 * 100) = 8.16 %
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