Question

find the diameter of a circle having following area 616

Answer 1

hlo

area of circle = πr²

22 / 7 × r² = 616

r² = 616 × 7 / 22

r² = 28 × 7

r² = 196

r = √196

r = 14

radius = 14

diameter = 2 × radius

diameter = 14 × 2 = 28✔✔✔✔

Answer 2

area of circle = area of circle is equal to Pi R Square 22/7*radius*radius =616. r*r= 616/22/7. r*r= 616*7/22. r*r= 28*7. r*r= 196. r =
$\sqrt{196 }$
r= 14