Question

Calculate the area of:A circumference of 20m in diameter.​

Answer 1

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Circuf =2πr

20 =2πr

$\frac{10 \times 22}{7} = r$

Now area =

$a = \pi {r}^{2}$

Put value..

$a = \pi \times \frac{10}{\pi} \times \frac{10 \times 22}{7}$

$a = 31.42 \times 10$

Area = 314.2 $m^2$

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