Ans. 311⁄4 acres.
(2) In tract, 79 chains 84 links (79.84 chains) by 41 chains 25 links (41.25 chains)?
79.84 × 41.25 = 3293.4 square chains; 3293.4 ÷10 = 329.34 acres. Ans. 329.34 acres.
Table showing one side of a Square Tract or Lot containing
| 1 | acre | = | 208 | .7 | feet | = | 43,560 | square feet | |
| 1 | 1⁄2 | acres | = | 255 | .6 | feet | = | 65,340 | square feet |
| 2 | acres | = | 295 | .2 | feet | = | 87,120 | square feet | |
| 2 | 1⁄2 | acres | = | 330 | feet | = | 108,900 | square feet | |
| 3 | acres | = | 361 | .5 | feet | = | 130,680 | square feet | |
| 5 | acres | = | 466 | .7 | feet | = | 217,800 | square feet | |
| 10 | acres | = | 660 | feet | = | 435,600 | square feet | ||
| 1⁄10 | acre | = | 66 | feet | = | 4,356 | square feet | ||
| 1⁄8 | acre | = | 73 | .8 | feet | = | 5,445 | square feet | |
| 1⁄6 | acre | = | 85 | .2 | feet | = | 7,260 | square feet | |
| 1⁄4 | acre | = | 104 | .4 | feet | = | 10,890 | square feet | |
| 1⁄3 | acre | = | 120 | .5 | feet | = | 14,520 | square feet | |
| 1⁄2 | acre | = | 147 | .6 | feet | = | 21,780 | square feet | |
| 3⁄4 | acre | = | 180 | .8 | feet | = | 32,670 | square feet |
Table of Surveyors’ Square Measure
| 2721⁄2 | square feet = 1 square rod |
| 16 | square rods = 1 square chain |
| 160 | square rods, or 10 square chains = 1 acre |
| 640 | acres = 1 square mile, or section |
| 36 | square miles, or 36 sections = 1 township |
Texas Land Measure
(Also used in Mexico, New Mexico, Arizona, and California)
| 26,000,000 | square varas (square of | 5,099 | varas) | = | 1 league and 1 labor | = | 4,605 | .5 | acres | ||
| 1,000,000 | square varas (square of | 1,000 | varas) | = | 1 labor | = | 177 | .136 | acres | ||
| 25,000,000 | square varas (square of | 5,000 | varas) | = | 1 league | = | 4,428 | .4 | acres | ||
| 12,500,000 | square varas (square of | 3,535 | .5 | varas) | = | 1⁄2 league | = | 2,214 | .2 | acres | |
| 8,333,333 | square varas (square of | 2,886 | .7 | varas) | = | 1⁄3 league | = | 1,476 | .13 | acres | |
| 6,250,000 | square varas (square of | 2,500 | varas) | = | 1⁄4 league | = | 1,107 | .1 | acres | ||
| 7,225,600 | square varas (square of | 2,688 | varas) | = | 1,280 | acres | |||||
| 3,612,800 | square varas (square of | 1,900 | .8 | varas) | = | 1 section | = | 640 | acres | ||
| 1,806,400 | square varas (square of | 1,344 | varas) | = | 1⁄2 section | = | 320 | acres | |||
| 903,200 | square varas (square of | 950 | .44 | varas) | = | 1⁄4 section | = | 160 | acres | ||
| 451,600 | square varas (square of | 672 | varas) | = | 1⁄8 section | = | 80 | acres | |||
| 225,800 | square varas (square of | 475 | varas) | = | 1⁄16 section | = | 40 | acres | |||
| 5,645 | .376 | square varas (square of | 75 | .137 | varas) | = | 4,840 square yards | = | 1 | acre | |
To find the number of acres in any number of square varas, multiply the latter by 177 (or to be more exact, by 1771⁄8), and cut off six decimals.