How many acres are in an area 24 feet wide and 12 miles long?

How many acres are in an area 24 feet wide and 12 miles long?

• A. 32.0
• B. 34.9
• C. 12.4
• D. 50.2

Answer: (B)

Converting to consistent units and using the acre definition is the key. An acre is 43,560 square feet, so you’ll convert the length to feet, multiply to get square feet, then divide by 43,560 to get acres.

Length: 12 miles × 5,280 ft/mile = 63,360 ft.

Area in square feet: 24 ft × 63,360 ft = 1,520,640 ft².

Acres: 1,520,640 ÷ 43,560 ≈ 34.9 acres.

So the area is about 34.9 acres.