The circumference of circle with 2 foot radius is: about 12.57 feet. (c = r x 2 x Pi)
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It will have a radius of 2 because 2*pi*radius is the circumference of the circle.
Circumference of a circle = 2*pi*radius or pi*diameter
2, because the radius is half of the circumference
The circumference of a circle with a radius of 8.5 cm is: 53.41 cm (radius x 2 x Pi = circumference).
The radius of a circle is half the length of the diameter. Therefore, if the diameter is 1 foot, the radius would be 0.5 feet. This is because the radius is the distance from the center of the circle to any point on the circle's circumference, while the diameter is the distance across the circle passing through the center.