Question

The area of a circular plate is 385 m². Find its circumference.​

Answer 1

Answer:

$r = 11.07m$

Step-by-step explanation:

Area of Circle = $\pi {r}^{2}$

So, $\pi {r}^{2} = 385 {m}^{2}$

We know that , $\pi = \frac{22}{7}$

So, ${r}^{2} = \frac{7}{22} \times 385$

Therefore, $r = 11.07m$

Answer 2

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