Question

area of a circle is 616 sq metre there is a pathway of 2m width outside the circle find the area of pathway

Answer 1

$area \: of \: circle = 616 \: {m}^{2} \\ \pi {r}^{2} = 616 \\ {r}^{2} = 196 \\ r = 14$
radius with pathway is 16m .
area of whole circle is
$\pi \: {r}^{2} = 804.6{m}^{2}$
804.6-616=188.6