How to Calculate Diameter Size: Easy Formulas Explained

Learn to calculate diameter size using different formulas for radius and circumference.

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To calculate diameter size, use the formula: Diameter = 2 × Radius. If you have the circumference, use Diameter = Circumference / π (pi). For example, if the radius is 5 cm, the diameter is 2 × 5 cm = 10 cm. If the circumference is 31.4 cm, the diameter is 31.4 cm / 3.14 = 10 cm.

FAQs & Answers

  1. What is the formula for diameter? The formula for diameter is Diameter = 2 × Radius.
  2. How do you find the diameter from circumference? To find the diameter from circumference, use the formula Diameter = Circumference / π.
  3. What is the diameter of a circle? The diameter of a circle is the distance across the circle through its center, equal to twice the radius.
  4. Can diameter be calculated from area? Yes, diameter can be calculated from the area using the formula Diameter = 2 × √(Area/π).

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