Circle with Area 321.8409 Square Inches

Instant diameter calculation and visualization

Diameter

20.243 inches

Radius

10.1215 inches

Circumference

63.5954 inches

Area

321.8409 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 = √(321.8409/π) = 10.1215 inches
d = 2 × 10.1215 = 20.243 inches

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