geometry
posted by james .
consider a circle of radius 1, and corresponding inscribed and circumscribed polygons with the number of sides n = 3, 4, 5, 6, and 8.
A: For each n = 3, 4, 5, 6 & 8, what are the areas of the inscribed and circumscribed polygons with n sides?

divide each polygon into identical isosceles triangles. Find the area of one triangle and multiply by the number of sides.