Question

if the area of a circle is 154m2, find the perimeter of the circle

Answer 1

area of circle=154m²
πr²=154
22/7×r²=154
r²=154×7/22
r²=7×7
r=7m

perimeter of Circle=2πr
=2×22/7×7
=44m
[sorry for the above attachment it's wrong]