If the 19' is referring to the circumference of a circle then the diameter is approx.
6.0479'.
19÷3.1416=approx. 6.0479
If the 19' is referring to the radius, (from center of the circle to the outside edge), then
the answer is 38'.
diameter= radius X 2.
19X2=38
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It is: 19*pi feet
283.529 sq. ft., assuming 19' diameter: A = pi * radius2 = pi * (19 / 2)2.
A diameter being a line has no width and so there are 0 sq ft in a 36 ft diameter.
circumference = π x diameter => diameter = circumference ÷ π ~= 20ft ÷ 3.14 ~= 6.37 ft
The circumference of a circle with the diameter of 14 ft is: 44 feet.