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

Explanation

Hecne, We hare `x=10` and


`Delta x=frac{k}{100} times 10 `

`Delta x=0.1 k`



`Area =pi x^{2}`


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