A polygon of nine sides, each side of length 2, is inscribed in a circle. The radius of the circle is ____________.

A polygon of nine sides, each pf length 2, is inscribed in a circle. Prove that the radius of the circle is cosec 20^(@) .

A polygon of nine sides, each of length 2, is inscribed in a circle with centre at the origin. Equation of the circle is x ^(2) +y ^(2)= r ^(2), where 1//r is equal to

An equilateral triangle of side 6 cm is inscribed in a circle. Then radius of the circle is

A regular polygon of 9 sides where length of each side is 2 is inscribed in a circle.Then the radius of the circle is

An equilateral triangle of side 9cm is inscribed in a circle.Find the radius of the circle.

An equilateral triangle of side 9cm is inscribed in a circle.Find the radius of the circle.

A square of side x is inscribed in a circle of radius 4 cm. Then x is

A rectangle of sides a and b is inscribed in a circle.Then its radius is

The length of the side (in cm) of an equilateral triangle inscribed in a circle of radius 8 cm is ___________.