Circle with Area 66.1716 Square Inches

Instant diameter calculation and visualization

Diameter

9.1789 inches

Radius

4.5895 inches

Circumference

28.8364 inches

Area

66.1716 in²

How to Calculate Circle Diameter from Area

Step-by-Step Solution

  1. Start with the circle area formula: A = πr²
  2. Solve for radius: r = √(A/π)
  3. Calculate diameter: d = 2r
r = √(66.1716/π) = 4.5895 inches
d = 2 × 4.5895 = 9.1789 inches

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