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OpenStudy (anonymous):
can someone help to find the general formula for PI
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OpenStudy (anonymous):
there is no formula for pi,pi=180
OpenStudy (anonymous):
any proof plz
OpenStudy (anonymous):
I suppose you could draw a regular polygon (starting with a triangle) that touches a circle, then change it to a square, then pentagon etc until you get close to infinity sides and then you compare the perimeter of this shape with the radius of the circle and divide the perimeter by 2*radius and you have pi.
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