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The diagram shows a circle of radius 1 contained in a square. If the area of the circle equals x% of the area of the square, then what is x rounded to the nearest integer?

 

 

Guest Nov 9, 2017
 #1
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Area of square  = 1 unit^2

 

The circle has a radius of  (1/2)

 

So...its area is :    pi   (1/2)^2  =  pi / 4  units^2

 

So    area of circle to area of square  =   [ pi / 4] : 1  =   pi / 4  ≈ .785  ≈  79%

 

 

cool cool cool

CPhill  Nov 9, 2017
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thx your the best

Guest Nov 9, 2017

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