How to Calculate the Area of a Circle with a 12 Diameter

Learn how to find the area of a circle with a 12 diameter using the formula A = πr².

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To calculate the area of a circle with a diameter of 12, use the formula A = πr². First, find the radius (half the diameter), which is 6. Then, compute the area: A = π * 6² ≈ 113.1 square units.

FAQs & Answers

  1. How do you calculate the area of a circle? To calculate the area of a circle, use the formula A = πr², where 'r' is the radius of the circle.
  2. What is the radius of a circle with a diameter of 12? The radius of a circle with a diameter of 12 is 6, since the radius is half of the diameter.
  3. What is the area of a circle with a radius of 6? The area of a circle with a radius of 6 is approximately 113.1 square units, calculated using the formula A = π × 6².
  4. Why is π important in circle calculations? π (pi) is a mathematical constant representing the ratio of a circle's circumference to its diameter, crucial for calculations involving circles.

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