Question

if the area of a circle is 154 cm², then what is it's circumference?

Answer 1

Answer:

your ans is 576

Step-by-step explanation:

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Answer 2

Answer:

$\pi {r}^{2} = area \: of \: circle \\ \frac{22}{7} \times {r}^{2} = 154 \\ {r}^{2} = \frac{154 \times 7}{22 } \\ {r}^{2} = 7 \times 7 = 49 \\ r = \sqrt{49} \\ r = 7 \\ \\ 2r\pi = circumference \: of \: circle \\ 2 \times 7 \times \frac{22}{7} = 2 \times 22 \\ 44 = circumference \: of \: circle \:$

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