| Singular | Plural | |
|---|---|---|
| Nominativ | hexagonon, hexagonon | hexagona, hexagona |
| Genitiv | hexagoni, hexagoni | hexagonorum, hexagonum, hexagonum, hexagonorum |
| Dativ | hexagono, hexagono | hexagonis, hexagonis |
| Akkusativ | hexagonon, hexagonon | hexagona, hexagona |
| Ablativ | hexagono, hexagono | hexagonis, hexagonis |
| Vokativ | hexagonon, hexagonon | hexagona, hexagona |