Find area of Polygon by Stair Method

Area of a polygon

Find the Area of polygon

Find the area of regular polygon ? If the area of the circle is A_(1) and area of a regular pentagon inscribed in the circle is A_(2); then find the ratio (A_(1))/(A_(2))

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.

A circle of radius r is inscribed in a regular polygon with n sides (the circle touches all sides of the polygon). If the perimeter of the polygon is p, then the area of the polygon is

Area OF triangle ||Area OF polygon || Condition OF Collinearity OF 3 points

In an n-sided regular polygon, each exterior angle is 72^(@) . Find the sum of all the interior angles of the polygon.

In an n-sided regular polygon, each interior angle is 144^(@) . Find the number of the sides of the polygon.