Math.by - The regular polygon area

The regular polygon area

Enter the known data:

n = - amount of sides
a = - length of side
r = - radius of inscribed circle
R = - radius of circumscribed circle

S =

Theory

The area formula of regular polygon

The area formula of regular polygon

The area formula of regular polygon

a - side length of regular polygon, n - amount of sides, r - radius of inscribed circle, R - radius of circumscribed circle.




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