Final answer:
The formula to calculate acreage is 'Length x Width / 43560'. Multiply the length by the width to get the area in square feet, then divide by 43,560 to convert it to acres.
Step-by-step explanation:
The formula to compute acreage from the legal description is b) Length x Width / 43560. To calculate acreage, one must consider that an acre is a unit of area commonly used in the United States, which is equal to 43,560 square feet. Therefore, to find out how many acres a certain parcel of land covers, you need to multiply the land's length by its width (to get square footage) and then divide by 43,560.
For example, if a piece of land is 220 feet long and 198 feet wide, then the area in square feet would be:
220 ft x 198 ft = 43,560 square feet
Since 1 acre = 43,560 square feet, this plot of land would be exactly 1 acre in size when we divide the total square footage by the number of square feet in an acre:
43,560 sq ft / 43560 = 1 acre