radii or radiuses) of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel. The typical abbreviation and mathematical variable name for radius is R or r.
ra·di·us
ra·di·us/ˈrādēəs/
noun
- a straight line from the center to the circumference of a circle or sphere.
- the thicker and shorter of the two bones in the human forearm.
- (in an echinoderm or coelenterate) any of the primary axes of radial symmetry.
verb
give a rounded form to (a corner or edge).
"Brian carefully radiused all the sharp edges and corners"
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The meaning of RADIUS is a line segment extending from the center of a circle or sphere to the circumference or bounding surface. How to use radius in a ...
a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter.
(the length of) a straight line joining the center of a circle to its edge or the center of a sphere to its surface.
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The radius of a circle is the distance from its center to the circumference, and if you are working on your geometry homework, or designing anything circular, ...
1. a straight line extending from the center of a circle or sphere to the circumference or surface The radius of a circle is half the diameter.
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-di•us•es. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter.
RADIUS meaning: 1 : a straight line from the center of a circle or sphere to any point on the outer edge; 2 : the length of this line.
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Noun: radius (radii,radiuses) rey-dee-us. The length of a line segment between the centre and circumference of a circle or sphere
a straight line between the centre of a circle and any point on its outer edge; the length of this line
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