There are four common measurements of a circle, radius, diameter, circumference, and area. Here is how they are related. Diameter is how far across it is at the widest point. Radius is 1/2 of diameter. Diameter X pi = circumference. pi = 3.1416 Area = pir2
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the radius is half the diameter
The diameter of a circle is simply twice the radius of the circle. The radius is a line that starts from the center of the circle to the circumference of the circle. The diameter is a line that passes through the circle. diameter=2xradius
The radius is half the diameter.
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
The radius of a circle is half of the diameter. Radius= Diameter divided by 2