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From Simple English Wikipedia, the free encyclopedia
Regular triacontagon
A regular triacontagon
TypeRegular polygon
Edges and vertices30
Schläfli symbol{30}, t{15}
Coxeter diagram
Symmetry groupDihedral (D30), order 2×30
Internal angle (degrees)168°
Dual polygonSelf
PropertiesConvex, cyclic, equilateral, isogonal, isotoxal

A triacontagon or 30-gon is a shape with 30 sides and 30 corners.

Regular triacontagon[change | change source]

All sides of a regular triacontagon are the same length. Each corner is 168°. All corners added together equal 5040°.

Area[change | change source]

The amount of space a regular triacontagon takes up is

a is the length of one of its sides.