Circle with Area 309.3377 Square Inches

Instant diameter calculation and visualization

Diameter

19.8459 inches

Radius

9.923 inches

Circumference

62.3478 inches

Area

309.3377 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 = √(309.3377/π) = 9.923 inches
d = 2 × 9.923 = 19.8459 inches

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