How to Calculate the Area of a Circle with a Diameter of 20

Learn to calculate the area of a circle with a diameter of 20 using the area formula and radius.

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To find the area of a circle with a diameter of 20, use the formula: Area = π * (radius)^2. Since the diameter is 20, the radius is half of that, which is 10. Therefore, the area is π * (10)^2, or approximately 314.16 square units.

FAQs & Answers

  1. What is the formula for the area of a circle? The formula for the area of a circle is Area = π × (radius)².
  2. How do you find the radius from the diameter? The radius is found by dividing the diameter by 2.
  3. Can you calculate the area of a circle without knowing the radius? Yes, you can calculate it using the diameter by applying the formula: Area = π × (diameter/2)².

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