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UPPSC Prelims 2019CSATQ. 83 of 219
Q. 831 markMedium
UPPSC Prelims 2019·CSAT
If the radius of a circle is increased in such a way that its circumference increases by 10%, by what percentage will its area increase?
(a)10%
(b)12%
(c)21%
(d)24%