The area of any circle is (pi) x (radius)2 .
The radius is 1/2 of the diameter.
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About 10.19.
circumference = π x diameter ⇒ diameter = circumference ÷ π = 32 in ÷ π ≈ 10.19 in
About 100.53cm
The diameter is the length of a line touching both sides of the circle and passing through the centre. The radius is the length of a line from the centre to touching the circle, and is half the length of the diameter, the diameter then is twice the length of the radius > diameter = radius * 2 = 32 * 2 = 64
The radius of a circle is half the length of the diameter, so if the diameter is 32 centimeters the radius is 16 centimeters.