FAQ

What is the Radius?
Radius is a line segment extending from the center of a circle or sphere to the circumference or bounding surface. Radius is usually measured using the Meter for Length. Note that the value of Radius is always positive.
Can the Radius be negative?
No, the Radius, measured in Length cannot be negative.
What unit is used to measure Radius?
Radius is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Radius can be measured.
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