Circle with Area 390.3497 Square Inches

Instant diameter calculation and visualization

Diameter

22.2937 inches

Radius

11.1468 inches

Circumference

70.0377 inches

Area

390.3497 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 = √(390.3497/π) = 11.1468 inches
d = 2 × 11.1468 = 22.2937 inches

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