Circle with Area 638.5187 Square Inches

Instant diameter calculation and visualization

Diameter

28.5129 inches

Radius

14.2565 inches

Circumference

89.576 inches

Area

638.5187 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 = √(638.5187/π) = 14.2565 inches
d = 2 × 14.2565 = 28.5129 inches

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