Tetracontagon
Appearance
Regular tetracontagon | |
---|---|
![]() A regular tetracontagon | |
Type | Regular polygon |
Edges and vertices | 40 |
Schläfli symbol | {40}, t{20}, tt{10}, ttt{5} |
Coxeter diagram | ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Symmetry group | Dihedral (D40), order 2×40 |
Internal angle (degrees) | 171° |
Dual polygon | Self |
Properties | Convex, cyclic, equilateral, isogonal, isotoxal |
A tetracontagon or 40-gon is a shape with 40 sides and 40 corners.
Regular tetracontagon
[change | change source]All sides of a regular tetracontagon are the same length. Each corner is 171°. All corners added together equal 6840°.
Area
[change | change source]The amount of space a regular tetracontagon takes up is
a is the length of one of its sides.