Area Problems
The circumferences of two concentric are 176 m and 132 m respectively. what is the difference between their radii?

5 meter
7 meter
44 meter
8 meter

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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?

10.25 %
10 %
10.5 %
8.75 %

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