Question

plz give me a ans in this questiin no 1

Answer 1

the correct answer is 2 cm hope it helps

Answer 2

area of circle=πr^2
$616 = \frac{22}{7} \times r {}^{2}$
$\frac{66 \times 7}{22} = {r}^{2}$
$\frac{462}{22}$
$21 = {r}^{2}$
$\sqrt{21 } = r$
$4.5 = r$