Question

find radius and circumference of circle whose area is 221.76​

Answer 1

Step-by-step explanation:

$area = 221.76 \\ \\ \pi {x}^{2} = 221.76 \\ (where \: x \: is \: radius) \\ {x}^{2} = \frac{221.76 \times 7}{22} \\ \\ {x}^{2} = 70.56 \\ \\ x = 8.4 \\ \\ circumference = 2\pi \times x \\ = 2 \times \frac{22}{7} \times 8.4 \\ \\ = 52.8$

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