The area of a regular polygon of n sides is (where R is the radius of the circumscribed circle)

JEE Main Mathematics question

Not in JEE syllabus

The area of a regular polygon of sides is (where is the radius of the circumscribed circle)

Answer: (D)

Join the centre to the vertices: the polygon splits into congruent isosceles triangles. Each has two sides equal to with

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-008518