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eng
DLC
Radius (Geometry)
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Geometry
Work cat.: 2003002681: Space circles, 2003:
CIP galley (radius)
CRC concise encyc. math.
(radius: the distance from the center of a circle to its perimeter, or from the center of a sphere to its surface. The radius is equal to half the diameter)
Random House
(radius: 1. a straight line extending from the center of a circle or sphere to the circumference or surface. 2. the length of such a line ...)