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'radius' in a sentence

Learn how to use 'radius' with 2 example sentences.


radius noun

: the length of a line segment between the center and circumference of a circle or sphere

: a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)

: a circular region whose area is indicated by the length of its radius

: the outer and slightly shorter of the two bones of the human forearm

: support consisting of a radial member of a wheel joining the hub to the rim


  • Its radius must be thirty meters at least.
  • We deliver your order free of charge within a 20-mile radius.
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