Question

area of circle is equal to area of square of side 20m find radius of circle​

Answer 1

Answer:

area of the square=20×20 sq m=400 sq m

area of the circle =400sq m

let radius =r m

so,

π.r^2=400

=> r^2=400×7/22=200×7/11

=> r=√(1400/11)