It equals 219 because there are 3 ft in a yd. :P
12 ft = 4 yd
3 yd = 9 ft
1 sq yd = 1 yd * 1 yd = 3 ft * 3 ft = 9 sq ft. 11 ft * 9 ft = 11*9 sq ft = 99 sq ft = 99/9 sq yd = 11 sq yd
3 ft
1 yard = 3 feet. So 9 yd 7 ft - 6 yd 8 ft = 2 yd 2ft
20 ft.
9 ft
35yd 1ft
11
3 yards 1 ft.
There are 3 ft in 1 yd ... SO (3 ft/yd) x 1760 yd = 5,280 ft (which equals 1 US mile)