There are about 4.33 yards in 13 feet.
13 feet are 4.33333 yards.
13' x 13' (169 square feet) = 18.77 square yards. (divide square feet by 9 to get square yards)
39 feet.
13' x 16' (208 square feet) = 23.11 square yards.
13 yards.
17' x 13' (221 square feet) = 24.55 square yards.
13' x 10' (130 square feet) = 14.44 square yards.
39 feet.
13
There are 3 feet in a yard. This works out to be 130 yards.
39 inches is 3 feet and 3 inches or 3.25 feet