If the circumference of a circle is equal to the perimeter of a square find the ratio of their areas

Asked by  | 1st Mar, 2013, 08:40: AM

Expert Answer:

Let the radius of the circle be r and the side of the square be s
So, 2*pi*r = 4s
r/s = 2/pi
 
Area of circle/area of square = pi*r2/ s2 = pi *(r/s)2 = pi * 4/pi2  = 4/pi

Answered by  | 1st Mar, 2013, 09:01: AM

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