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How to Calculate the Diameter from a Circle's Circumference: 6 cm Example

Learn how to calculate the diameter of a circle from its circumference with our 6 cm example. Simple step-by-step guide!

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Video transcript

The diameter of a circle can be found using the circumference formula: C = πd. For a 6 cm circumference, the formula is rearranged to d = C/π. This gives a diameter of approximately 1.91 cm.

Questions and answers

  1. What formula is used to find the diameter from circumference?

    The diameter can be found using the formula d = C/π, where C is the circumference.

  2. What is the relationship between diameter and circumference?

    The circumference of a circle is proportional to its diameter, expressed as C = πd.

  3. How do you measure the diameter of a circle without a ruler?

    You can estimate the diameter by measuring the circumference and dividing by π.

  4. Why is π important in circle calculations?

    π (Pi) is a mathematical constant that represents the ratio of a circle's circumference to its diameter, crucial in circle-related calculations.

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For more insights into geometry and mathematical calculations, check out our tutorials on circumference formulas and geometry basics to enhance your understanding.