Question

If the area of a circle is

Answer 1

Answer:

Since area =7.7

$area = \frac{22}{7} {(r)}^{2} \\ {(r)}^{2} = 2.45 \\ r = 1.57$

Then the circumference is

$c = 2pi\times r \\ = 2 \times 3.14 \times 1.57 \\ = 9.859$