Question

if the area of circle is 154 square metre what will be the perimeter

Answer 1

Here it goes
Have a look below

Area = 154 m sq
=> pi x r x r = 154
=> 22/7 x r x r = 154
=> r x r = 154 x 7 / 22
=> r^2 = 14 x 7 / 2
=> r^2 = 7 x 7
=> r^2 = 49
=> r = sq root of 49
=> r = 7 m

Perimeter = 2x pi x r
= 2 x 22/7 x 7
= 44 m

Hope you understood