Imperial unitsU.K.
| Acre = | 4840 square yards. |
| SQUARE YARD = | a superficial area equal to that of a square each side of which measures one yard. |
| Square foot = | 1/9 square yard. |
| Acre = | 4840 square yards. |
| SQUARE YARD = | a superficial area equal to that of a square each side of which measures one yard. |
| Square foot = | 1/9 square yard. |