1.77245 (rounded)
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the square root is 1.77 and pi equals 3.14159265..... and so on. But most people just say pi is 3.14
Given: a square with side = s and a circle with radius = s (radius is equal to the length of the side of the square) Areasquare = side squared = s2 Areacircle = pi times the square of the radius = pi times s2 Areasquare : areacircle = s2 : pi s2 = 1 : pi (The ratio is one to pi.)
Let's call the number 'K' ... the side of the square and the radius of the circle.-- the area of the square is [ K2 ]-- the area of the circle is [ (pi) K2 ]-- The ratio of the circle to the square is [(pi) K2 / K2 ] = pi
It is: 0.8462843753 units If: pi*radius2 = 2.25 Then: radius = square root of (2.25/pi) Check: pi*0.84628437532 = 2.25 square units
pi.(radius of the circle)square.