the sum of the radii of inscribed and circumscribed circle of an n sides regular
Channel: Doubtnut
Date: 12/04/2020

the sum of the radii of inscribed and circumscribed circle of an n sides regular polygon of side a is (A) `a/2 cot (pi/(2n))` (B) `acot(pi/(2n))` (C) `a/4 cos, pi/(2n))` (D) `a cot (pi/n)`