Find the sum of the radii of the circles, which are respectively inscribed and circumscribed about the a regular polygon of n sides.

Prove that the sum of the radii of the radii of the circles, which are, respectively, inscribed and circumscribed about a polygon of n sides, whose side length is a , is 1/2acotpi/(2n)dot

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

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 numbers of diagonals in the polygon of n sides.

Prove that the area of a regular polygon hawing 2n sides, inscribed in a circle, is the geometric mean of the areas of the inscribed and circumscribed polygons of n sides.

If r is the radius of inscribed circle of a regular polygon of n-sides ,then r is equal to

Find the number of diagonals in the convex polygon of n sides .

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

Draw a circle circumscribing a regular hexagon with side 5 cm.

Given that the area of a polygon of n sides circumscribed about a circle is to the area of the circumscribed polygon of 2n sides as 3:2 find n.