Metric units Metric units
| Hectare = | 100 ares. |
| Decare = | 10 ares. |
| Are = | 100 square metres. |
| SQUARE METRE= | a superficial area equal to that of a square each side of which measures one metre. |
| Square decimetre = | 1/100 square metre. |
| Square centimetre = | 1/100 square decimetre. |
| Square millimetre = | 1/100 square centimetre. |