The sum of radii of inscribed and circumscribed circles of an `n` sided regular polygon of side `a` is

The sum of the radii of inscribed and circumscribed circles for an n sided regular polygon of side a, is

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)

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)

The sum of the radii of inscribed and circumscribed circles for an n-sided regular polygon of side 'a' is

the sum of the radii of inscribed and circumscribed circules for an n sides regular polygon of side a, is

If R is the radius of circumscribing circle of a regular polygon of n-sides,then R =

If R is the radius of circumscribing circle of a regular polygon of n-sides,then R =