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

   www.omnicalculator.com › math › radius-of-a-circle

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   24 lip 2024 · There are three circle radius formulas, depending on what number you know: The radius of a circle from the area: if you know the area A, the radius is r = √(A / π). The radius of a circle from circumference: if you know the circumference c, the radius is r = c / (2 × π).

   • Endpoints

     Welcome to Omni's endpoint calculator, where we'll learn how...

   • Diameter of a Circle Calculator

     To calculate the radius of a circle, divide its...

   • Square Inches of a Circle Calculator

     The first step is to determine the radius of the circle. The...

   • Circle Measurements Calculator

     Next, let's discuss how to measure the diameter of a circle:...

   • Square Footage of a Circle Calculator

     For example, to know how to find the square feet of a circle...

   • Circle Perimeter Calculator

     To double-check your result, enter the radius in the circle...

   • Circumference

     To calculate the circumference of a circle with a radius of...

   • Circles

     If you know the radius or diameter of the circle, the area...

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

   www.omnicalculator.com › math › circumference

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   31 lip 2024 · To calculate the circumference of a circle with a radius of 1 meter, simply follow these steps: Multiply the radius by 2 to get the diameter of 2 meters. Multiply the result by π, or 3.14 for an estimation.

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

   www.khanacademy.org › cc-7th-area-circumference › a

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   The radius is just the line from the center of the circle. The diameter goes all the way through the center. The circumference is the area around the circle. You find the radius by taking the diameter and dividing it by 2. The diameter is found by multiplying the radius by 2. Ex: The radius is 7.5. Find the diameter. The diameter is?

4. www.omnicalculator.com › math › circleCircle Calculator

   www.omnicalculator.com › math › circle

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   22 lip 2024 · If you know the radius or diameter of the circle, the area of the circle formula is: a = πr² = π × (d / 2)². If radius and diameter are unknown, you can calculate it from the circumference: a = c² / 4π. If you are interested in calculations of some fraction of a circle, check:

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

   www.calculator.net › circle-calculator

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

6. www.gigacalculator.com › calculators › circumference-of-circle-calculatorCircumference of a Circle Calculator

   www.gigacalculator.com › calculators › circumference-of-circle-calculator

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   Circumference of a Circle Calculator. Use this calculator to easily calculate the circumference of a circle, given its radius in any metric: mm, cm, meters, km, inches, feet, yards, miles, etc. If you know the diameter, first divide it by two to get the radius. [x] hide illustration.

7. www.mathportal.org › calculators › plane-geometry-calculatorsCircle Calculator - Math Portal

   www.mathportal.org › calculators › plane-geometry-calculators

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   This calculator computes the area, circumference, radius and diameter of a circle. The calculator provides a step-by-step explanation to find the unknown element.