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A circular metal plate expands under hea...

A circular metal plate expands under heating, so that its radius increase by 2%. Find the approximate increase in the area of the plate, if the radius of the plate before heating is 10 cm.

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The correct Answer is:
`(2)/(5) pi cm^(2)`
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ARIHANT PUBLICATION-APPLICATION OF DERIVATIVES -QUESTION FOR PRACTICE PART - V (SHORT ANSWER TYPE QUESTIONS )
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