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  1. www.wikihow.com › Calculate-the-Radius5 Ways to Calculate the Radius of a Circle - wikiHow

    Jul 12, 2024 · To calculate the radius of a circle by using the circumference, take the circumference of the circle and divide it by 2 times π. For a circle with a circumference of 15, you would divide 15 by 2 times 3.14 and round the decimal point to your answer of approximately 2.39.

  2. www.omnicalculator.com › math › radius-of-a-circleRadius of a Circle Calculator

    Jul 17, 2024 · Learn how to find the radius of a circle from the area, circumference, or diameter using three simple formulas. Use the online tool to calculate the radius of a circle in seconds.

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  4. byjus.com › radius-formulaRadius Formula of a Circle Using Diameter, Area and Circumference...

    Radius formula is simply derived by halving the diameter of the circle. When we connect a point on the circumference of a circle to the exact centre, then the line segment made is called the radius of the ring.

  5. www.cuemath.com › geometry › radiusRadius of a Circle - Formula | What is Radius? | Radius Formula -...

    Learn how to find the radius of a circle using the formulas based on diameter, circumference, and area. See examples, diagrams, and equations of circles and spheres.

  6. mathmonks.com › circle › radius-of-a-circleRadius of a Circle – Definition, Formulas, Examples - Math Monks

    Aug 3, 2023 · What is the Radius of a Circle. 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 the circle.

  7. www.splashlearn.com › math-vocabulary › radius-of-a-circleRadius of a Circle - Definition, Formula, Facts, Examples, -...

    Learn how to find the radius of a circle using diameter, circumference, or area. See solved problems, equation of a circle, and FAQs on radius of a circle.

  8. www.khanacademy.org › a › radius-diameter-circumferenceRadius, diameter, & circumference | Circles (article) | Khan...

    Learn the definitions and formulas of radius, diameter, and circumference of a circle. See examples, practice problems, and tips on how to use pi (π) to find the circumference of any circle.