[" The sum of the radil of inscribed and circumscribed circles for an "n" sided regular polygon of side 'a',is "],[qquad [" (i) "," (AIEEE "-2003(3,1),2251]]

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 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

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 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)

Find the radius of the circumscribing circle of a regular polygon of n sides each of length is a.

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