The area of the greatest circle which can be inscribed in a square whose perimeter is 120cm is
A
227×(72)2cm2
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B
227×(92)2cm2
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C
227×(152)2cm2
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D
227×(15)2cm2
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Solution
The correct option is D227×(15)2cm2 Given square whose perimeter is 120cm. Then side of square =1204=30cm The radius of the greatest circle which can be inscribed in a square =302=15cm Then area of the greatest circle which can be inscribed in a square =πr2=π(15)2=227×(15)2cm2