18.84 x 1.5
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Radius: 18.84/2*pi = about 3 feetVolume: pi*3*3*1.5 = 42.412 cubic feet rounded to three decimal places
Circumference = 33 feet => radius = 33/(2*pi) feet.Then volume = pi*r2*h = pi*[33/(2*pi)]*54/12 cubic feet = 389.97 cu ft = 2429 gallons.
1 cu ft ≈ 6.22884 imp gal ≈ 7.48052 US gal 12 in = 1 ft → 7'4'' = 7+4/12 ft = 7⅓ ft → volume = (6 ft)² × 7⅓ ft = 264 cu ft ≈ 264 × 6.22884 imp gal ≈ 1644 imperial gallons ≈ 264 × 7.48052 US gal ≈ 1975 US gallons
Find the volume of the pool (in cu ft) and multiply by the number of gallons of water per cubic foot. Volume = 9x13x3 = 351 cu ft 351 x 7.481 (gal per cu ft) = 2625.831 gal
1 cu ft ≈ 6.22884 imp gal ≈ 7.48052 US gal 12 in = 1 ft → 7'4'' = 7+4/12 ft = 7⅓ ft → volume = area base × height = π × (6 ft ÷ 2)² × 7⅓ ft = 66π cu ft ≈ 66π × 6.22884 imp gal ≈ 1292 imperial gallons ≈ 66π × 7.48052 US gal ≈ 1551 US gallons