1.  Draw in the third side to create a right triangle

2.  Figure out the peak angle (180/number of sides)

3. Use trig to solve the right triangle (find a and b the legs of the triangle)

4.  Find the side length of the polygon (double the b value)

5. Find the Perimeter of the polygon (side * number of sides)

6. Find the Area of the polygon by using A = 1/2 * P * a