Question

Find the area of a circle whose radius is 20 cm. ​

Answer 1

Given that : Radius = 20cm.

As we know that :

________________

Area of Circle = πr²

=> Area if Circle = 22/7×20×20 = 1257.14 cm²

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Answer 2

Answer:

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

$\: \: \: \: \: \: \: \: \: \: = \frac{22}{7} \times 20 \: cm \times 20cm$

$\: \: \: \: \: \: \: \: \: = 1257 \: {cm}^{2} (approx)$