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  1. Radius of a Circle - Formula | What is Radius? | Radius Formula

    The distance from the center point to any endpoint on the circle is called the radius of a circle. Learn about the radius formulas with solved examples with Cuemath.

  2. Radius of a Circle – Definition, Formulas, Examples

    Aug 3, 2023 · The radius of a circle is the distance from the center of the circle to any point on its circumference. It is half the length of the diameter of the circle. Shown below is the radius of …

  3. RADIUS Definition & Meaning - Merriam-Webster

    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 sentence.

  4. Radius of a circle definition and calculator - Math Open Reference

    The plural form is radii (pronounced "ray-dee-eye"). In the figure above, drag the orange dot around and see that the radius is always constant at any point on the circle. Sometimes the …

  5. How to Calculate the Radius of a Circle: Formulas & More - wikiHow

    Oct 7, 2025 · The radius of a circle is the distance from the center of the circle to any point on its circumference. The easiest way to find the radius is by dividing the diameter in half.

  6. RADIUS | definition in the Cambridge English Dictionary

    The supermarket, shopping mall, and school are all within a one-mile radius of the house (= are all less than a mile away from it).

  7. Radius of a Circle - Definition, Formula, Facts, Examples,

    The radius of the circle is the distance between the center of the circle and any point on its circumference. Learn the definition, formulas, examples, and more.

  8. Radius Definition (Illustrated Mathematics Dictionary)

    Illustrated definition of Radius: The distance from the center to the circumference of a circle It is half of the circle's...

  9. Radius - Math.net

    The radius (plural radii) of a circle is any line segment that has one endpoint on the center of the circle and the other endpoint on the circle's circumference.

  10. radius noun - Definition, pictures, pronunciation and usage notes ...

    Definition of radius noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.