How to Calculate the Radius of a Circle from a 36 cm Circumference

Learn how to find the radius of a circle when the circumference is 36 cm using a simple formula and step-by-step calculation.

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To find the radius of a circumference of 36 cm, we use the formula Circumference = 2πr. Dividing the circumference by 2π gives us the radius. The radius of a 36 cm circumference is approximately 5.73 cm. This straightforward calculation is essential for various practical and educational purposes, providing clarity on geometrical properties.

FAQs & Answers

  1. What formula is used to find the radius from the circumference? The formula to find the radius from the circumference is radius (r) = circumference ÷ (2 × π).
  2. What is the radius if the circumference is 36 cm? If the circumference is 36 cm, the radius is approximately 5.73 cm calculated using r = 36 ÷ (2 × 3.1416).
  3. Why is knowing the radius important in geometry? The radius is important because it helps determine other properties of a circle such as area, diameter, and sector sizes, essential in both practical applications and mathematical problem solving.

Watch More

For more insights on circle geometry and other related math topics, check out our videos on calculating the area and diameter of circles, as well as tutorials on basic geometric formulas.

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