C = 2πr
Therefore: (24 x 2) x 3.14 = 150.72 feet
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A radius is a dead straight line from the centre of a circle to a point on its circumference.
If the diameter of the circle is 24 feet, the radius is half that, or 12 feet. If the circumference of the circle is 24 feet, the radius is 24 divided by 2 divided by pi, or 3.82 feet.
Circumference = 2*pi*24 = 150.796 feet to 3 dp
Circumference = 2*pi*radius = 150.80 units.
Circumference is pi times diameter. If the radius is 24, the diameter (twice the radius) is 48, making the circumference 48pi, or approximately 150.72 units.