Since you know there are 12 inches in one foot, you do 80/12 to find the number of feet in 80 inches. 80/12 gives you about 6.67 feet in 80 inches.
80*80 = 6400 square feet
There are 80*80 = 6400 sq feet.
80 miles = 422,400 feet.
80 cm = 2.624 feet.
80 centimeters = 2.624 feet.
80 inches is 6.66 feet.
6400 square feet
80 cm is about 2.62 feet.
80 acres = 3,484,800 square feet.
80 feet x 8 feet = 640 square feet.
44.4 square feet.
80 acres = 3,484,800 square feet