Circle with Area 309.225 Square Inches

Instant diameter calculation and visualization

Diameter

19.8423 inches

Radius

9.9212 inches

Circumference

62.3365 inches

Area

309.225 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 = √(309.225/π) = 9.9212 inches
d = 2 × 9.9212 = 19.8423 inches

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