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How do you compute radius?

 

 

For the triangle below, let x be the area of the circumcircle, and let y be the area of the incircle. Compute x - y.

 

 Apr 25, 2023
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Area of circumcircle==Pi * [a / sqrt(3)]^2  


Area of incircle ==Pi * [a /(2*sqrt(3))]^2


x  -  y ==Pi * [a / sqrt(3)]^2  -  Pi * [a /(2*sqrt(3))]^2


x  -  y==[Pi * a^2] / 4

 Apr 26, 2023

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