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  1. www.omnicalculator.com › math › circle-diameterDiameter of a Circle Calculator

    26 cze 2024 · How do you find the radius and diameter of a circle? To calculate the radius of a circle, divide its circumference by 2π; for the circle's diameter, divide the circumference by π . Let's say that the circumference of a given circle is 20 inches.

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

    6 dni temu · The radius of a circle from circumference: if you know the circumference c, the radius is r = c / (2 × π). The radius of a circle from diameter: if you know the diameter d, the radius is r = d / 2.

  3. www.omnicalculator.com › math › circumferenceCircumference Calculator

    3 dni temu · To find the radius of a circle with a circumference of 10 centimeters, you have to do the following: Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter, 3.18 centimeters.

  4. www.khanacademy.org › cc-7th-area-circumference › aRadius, diameter, & circumference | Circles (article) | Khan...

    Another formula to find the circumference is if you have the diameter you divide the diameter by 2 and you get the radius. Once you have the radius you times the radius by 2 and times it by pie and then you get the circumference. Here are the two different formulas for finding the circumference: C = πd C = 2πr d = diameter, C = circumference ...

  5. www.calculator.net › circle-calculatorCircle Calculator

    This calculator computes the values of typical circle parameters such as radius, diameter, circumference, and area, using various common units of measurement.

  6. www.khanacademy.org › v › finding-radius-and-diameter-from-circumferenceRadius & diameter from circumference (video) | Khan Academy

    The formula to find the area of a circle is: Area = pi times the radius squared. The radius is a line that starts at the center of the circle and goes to the edge. If you cut the circle in half, the radius would be the distance from the center to the edge. To find the area, we need to know the radius.

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

    6 dni temu · 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.