Area Problems
A circle and a square have same area. The ratio of the side of the square and the radius of the circle is?

1 : ?
?? : 1
? : 1
1 : ??

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Area Problems
The radius of a circle is increased so that its circumference increase by 5%. The area of the circle will increase by?

8.75 %
10.25 %
10.5 %
10 %

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