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  1. 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.

  2. 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.

  3. 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 …

  4. 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.

  5. 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 …

  6. 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.

  7. RADIUS | definition in the Cambridge English Dictionary

    RADIUS meaning: 1. (the length of) a straight line joining the centre of a circle to its edge or the centre of a…. Learn more.

  8. 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.

  9. Map Radius Calculator - CalcMaps

    Draw a Radius around a map location. Draw a radius circle around a location in Google Maps to show a distance from that point in all directions.

  10. Radius of Circle - GeeksforGeeks

    Jul 23, 2025 · The radius of a circle is the distance from the center of the circle to any point on its circumference. It is a constant length for a given circle and is half the diameter of the circle.