Question

11 If the perimeter of a circle is equal to that of a
square, then find the ratio of their areas,​

Answer 1

Step-by-step explanation:

given that,

2πr = 4s

πr = 2s

s = πr/2 ----(1)

area of circle = πr²

area of square = s²

so, the ratio is (circle to square ratio )

=> πr²/(πr/2)²

=> 4πr²/π²r²

=> 4/π so, 4:π ....