Editing Regular polygon (section)

=== Dissections===
[[Coxeter]] states that every [[zonogon]] (a 2''m''-gon whose opposite sides are parallel and of equal length) can be dissected into <math>\tbinom{m}{2}</math> or {{nowrap|{{sfrac|1|2}}''m''(''m'' − 1)}} parallelograms.
These tilings are contained as subsets of vertices, edges and faces in orthogonal projections [[Hypercube|''m''-cubes]].<ref>[[Coxeter]], Mathematical recreations and Essays, Thirteenth edition, p.141</ref>
In particular, this is true for any regular polygon with an even number of sides, in which case the parallelograms are all rhombi.
The list {{OEIS2C|1=A006245}} gives the number of solutions for smaller polygons.
{| class="wikitable skin-invert-image"
|+ Example dissections for select even-sided regular polygons
!
|[[File:6-gon rhombic dissection.svg  |100px]]
|[[File:8-gon rhombic dissection.svg  |100px]]
|[[File:Sun_decagon.svg               |100px]]
|[[File:12-gon rhombic dissection.svg |100px]]
|[[File:14-gon-dissection-star.svg    |100px]]
|[[File:16-gon rhombic dissection.svg |100px]]
|- align=center valign=top
!scope=row style="text-align:left" |Sides
|[[Hexagon#Dissection|6]]
|[[Octagon#Dissection|8]]
|[[Decagon#Dissection|10]]
|[[Dodecagon#Dissection|12]]
|[[Tetradecagon#Dissection|14]]
|[[Hexadecagon#Dissection|16]]
|- align=center valign=top
!scope=row style="text-align:left" |Rhombs
|3
|6
|10
|15
|21
|28
|- 
|}
{| class="wikitable skin-invert-image"
!
|[[File:18-gon-dissection-star.svg    |100px]]
|[[File:20-gon rhombic dissection.svg |100px]]
|[[File:24-gon rhombic dissection.svg |100px]]
|[[File:30-gon-dissection-star.svg    |100px]]
|[[File:40-gon rhombic dissection.svg |100px]]
|[[File:50-gon-dissection-star.svg    |100px]]
|- align=center valign=top
!scope=row style="text-align:left" |Sides
|[[Octadecagon#Dissection|18]]
|[[Icosagon#Dissection|20]]
|[[Icositetragon#Dissection|24]]
|[[Triacontagon#Dissection|30]]
|40
|50
|- align=center valign=top
!scope=row style="text-align:left" |Rhombs
|36
|45
|66
|105
|190
|300
|}