How to Calculate the Area of a Circle with a 30 cm Diameter

Learn the step-by-step process to find the area of a circle with a 30 cm diameter using simple formulas.

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To calculate the area of a 30 cm diameter circle, use the formula: Area = π * (radius^2). The radius is half the diameter, so 15 cm. Thus, the area is π * (15 cm)^2, which equals 706.86 cm².**

FAQs & Answers

  1. What is the formula for calculating 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? To find the radius, divide the diameter by 2.
  3. What is the area of a circle with a 15 cm radius? The area of a circle with a 15 cm radius is approximately 706.86 cm².
  4. Can the area of a circle be calculated without π? No, π is an essential part of the formula for calculating the area of a circle.

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