p

-

the name of the regular polygon

n

-

positive integer >= 3

cen

-

point which is the center of the n-gon

rad

-

number which is the radius of the circumscribed circle of the n-gon

form(p)

returns the form of the geometric object

(i.e., RegularPolygon2d if p is a regular polygon).

DefinedAs(p)

returns a list of vertices of p.

sides(p)

returns the side of p.

center(p)

returns the center of p.

radius(p)

returns the radius of the circum-circle of p.

inradius(p)

returns the radius of the in-circle of p.

InteriorAngle(p)

returns the interior angle of p.

ExteriorAngle(p)

returns the exterior angle of p.

apothem(p)

returns the apothem of p.

perimeter(p)

returns the perimeter of p.

area(p)

returns the area of p.

detail(p)

returns a detailed description of the

given regular polygon p.