Properties of regular polygons (Polygons).
Description: Geometry application, dealing with regular polygons. The program draws polygons (3 to 20 sides) and computes its
major properties: exterior and interior angle, radius and apothem, perimeter and surface area, equations of the circumcircle and the incircle, number of
diagonals, side lengths, angle and area of the main and small polygon triangles. Radius, apothem, circumcircle, incircle and diagonals may also been shown
on the drawing.
Free Pascal features: Creating drawings, using bitmap canvas.