4136 or so
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12 ft * 19 ft = 12*19 sq ft = 228 sq ft = 25.33.. sq yards
No. A yard is larger than a foot, so 1 sq yd is larger than 1 sq ft So six hundred odd sq yds MUST be larger than only two hundred odd sq ft. Exactly: 1 yd = 3 ft ⇒ 1 sq yd = 1 yd x 1 yd = 3 ft x 3 ft = 9 sq ft ⇒ 684 sq yd = 684 x 9 sq ft = 6156 sq ft > 228 sq ft ⇒ 684 sq yd > 228 sq ft.
circumference (2piR) = 80, so R= 12.72.. Now Sq ft (area) = 2(pi)(R)(R) = 1018.18
5220.5 sq ft
19681.81 sq ft