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What is the value of 'r' ( in m ) ?

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A man builds a circular pool of radius 5 m inside a circular garden of radius 12 m. In order to compensate the area lost due to the construction of pool, he extends the radius 'r' m while keeping the garden still circular , so that the area of the garden remains the same.
What is the value of 'r' ( in m ) ?

posted Jul 31, 2015 by Aastha Joshi

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