Canada| Kieli | Käännökset |
|---|---|
| espanja | decagonal, decágono |
| italia | decagonale |
| ranska | décagonal |
Shaped like a decagon.
Decagons often appear in tilings with (partial) 5-fold symmetry. The images show an Islamic geometric pattern (15th century), an illustration in Kepler's Harmonices Mundi (1619) and a Penrose tiling.