circumference (2piR) = 80, so R= 12.72.. Now Sq ft (area) = 2(pi)(R)(R) = 1018.18
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80 ft * 60 ft = 80*60 sq ft = 4800 sq ft
There are 0.3125 16x16 squares in 80 sq ft.
4136 or so
9 sq ft = 1 sq yd so 80 sq ft = 80/9 = 8.88... sq yards.
12 in = 1 ft → 1 tile = 16 in × 16 in = (16 ÷ 12) ft × (16 ÷ 12) ft = 16/9 sq ft → 80 tiles = 80 × 16/9 sq ft = 1280/9 sq ft = 142 2/9 sq ft ≈ 142.22 sq ft