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r vs radius

radius vs r

r and radius both are nouns.

Word NounAdjectiveVerbAdverb
r Yes No No No
radius Yes No No No
As nouns, r and radius are synonyms defined as:
  • r and radius: the length of a line segment between the center and circumference of a circle or sphere
r (noun) radius (noun)
the length of a line segment between the center and circumference of a circle or sphere support consisting of a radial member of a wheel joining the hub to the rim
the 18th letter of the Roman alphabet the length of a line segment between the center and circumference of a circle or sphere
the outer and slightly shorter of the two bones of the human forearm
a circular region whose area is indicated by the length of its radius
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
Difference between r and radius

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