An area of 20 acres can have millions of different shapes. It can be round, oval, square, rectangular, triangular, hexagonal, or irregular. Knowing the area doesn't tell you the shape or the proportions. As long as the total included area is 43,560 square feet, it's an acre.
The smallest possible perimeter for 20 acres would be a circle with a diameter of 1053.2 feet. The circumference is 3308.75 ft = 0.63 mile.
The smallest possible plot with straight sides would be a square, with sides of 933.4 feet, and perimeter of 3,733.5 ft = 0.707 mile.
But you can make 20 acres have as large a perimeter as you want, with no upper limit. For example:
A strip of land 10 feet wide and 87,120 ft (16.5 miles) long. Area = 20 acres. Perimeter = 33 miles and 20 ft.
1.825
10 miles
The perimeter of a 30-acre square lot is 0.866 miles.
The perimeter of a 24.5-acre square lot is 4,132.25 feet.
The perimeter of a 35-acre square lot is 0.935 miles.
A 150-acre square lot has a perimeter of 10,224.68 feet.
If the three acres is a square then the perimeter would be 1,445.99 feet or 1,445 feet and 11.88 inches.
2.65 miles.
The perimeter of a 30-acre square lot is 0.866 miles.
0.125
The perimeter of a 24.5-acre square lot is 4,132.25 feet.
400 miles
The perimeter of a 35-acre square lot is 0.935 miles.
Approximately 0.94 miles.
That depends on the shape of the lot. However, the perimeter of a 724-acre square lot is 4.25 miles.
A 150-acre square lot has a perimeter of 10,224.68 feet.
If the three acres is a square then the perimeter would be 1,445.99 feet or 1,445 feet and 11.88 inches.
3,520 yards.
The perimeter of a 50-acre square lot is 5,903 feet or about 1.12 miles.