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Q.

The side of a square is 10 cm. Find the area between the inscribed and circumscribed circle of the square.


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a

 15π cm2

b

25π cm2

c

35π cm2

d

45π cm2 

answer is B.

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Detailed Solution

 For the inscribed circle:
Diameter = Side of the square = 10 cm
Radius =102=5 cm
Question ImageSo, circumscribed circle diameter=102 cm
Area =πr2
=π×(52)2
=50π cm
And diameter of inscribed circle=10 cm
Area =π×5×5
=25π cm2
Correct option is 2.
 
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