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Area of a Circle

The area of a...

Question

The area of a circle is 18 $π$ sq. units. The area of a square of side having the same dimension as that of the radius of the circle is (sq. units)

A

24

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B

36

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C

30

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D

60

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E

78

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Solution

The correct option is B
36

Radius of the circle = $\sqrt{18}$ sq. units
Side of the square = Radius of the circle = 3 units
Area of the square = $S i d e^{2} = 3^{2} u n i t s$
$= 9 s q . u n i t s$

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