Regular na poligon

Set of convex regular n-gons
Mga regular na poligon
Edges and vertices	n
Schläfli symbol	{n}
Coxeter–Dynkin diagram	Padron:CDD
Symmetry group	Dn, order 2n
Dual polygon	Self-dual
Area (with side length, s)	$A=\frac{1}{4}n{s}^2\cot \left(\frac{\pi }{n}\right)$
Internal angle	$(n-2)\times \frac{180^{\circ }}{n}$
Internal angle sum	$(n-2)\times 180^{\circ }$
Inscribed circle diameter	$d_{\text{IC}}=s\cot \left(\frac{\pi }{n}\right)$
Circumscribed circle diameter	$d_{\text{OC}}=s\csc \left(\frac{\pi }{n}\right)$
Properties	Convex, cyclic, equilateral, isogonal, isotoxal

Sa heometriya, ang regular na poligon (regular polygon) ay isang poligon na ekwiangular (ang lahat ng anggulo nito ay pareho ang sukat) at ekwilateral (ang lahat ng mga gilid nito ay pareho ang haba). Ang isang regular na poligon ay maaaring isang konbeks na poligon o bituin.