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

    6 dni temu · The radius of a circle calculator returns the length of a circle's radius based on the input data: the circumference, area, or diameter.

  2. 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.

  3. 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.

  4. www.wikihow.com › Calculate-the-Circumference-of-a-Circle3 Ways to Calculate the Circumference of a Circle - wikiHow

    20 lip 2023 · To calculate the circumference of a circle, use the formula C= pi*D where C is the circumference, D is the diameter and pi is 3.14. If you have the radius instead of the diameter, multiply it by two to get the diameter.

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

    The radius, diameter, and circumference of a circle are all related through the mathematical constant π, or pi, which is the ratio of a circle's circumference to its diameter. The value of π is approximately 3.14159. π is an irrational number meaning that it cannot be expressed exactly as a fraction (though it is often approximated as ) and ...

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

    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

  7. 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.