Question

If the radius of a circle is increased by 17% its area increases by ​

Answer 1

let the radius be r

so area = πr²

but new area = {(117/100)*r}² * π

= 1.17πr²

so the increase = 1.17πr²/πr²

=1.17 times increase.

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Answer 2

If the radius of a circle is increased by 17% its area increases by 36.89

i hope it helps. u