144

1

sq. foot.

9

sq. ft.......

1

sq. yard.

30¼

sq. yds......

1

sq. rod.

40

sq. rods......

1

rood. '

4

roods.......

1

acre.

Surveyors'.

7.92

Inches....

1

link.

25

links........

1

rod.

4

rods.............

1

chain.

10

square chains.

1

acre.

160

square rods..

640

acres...........

1

square mile