Circle with Area 390.0168 Square Inches

Instant diameter calculation and visualization

Diameter

22.2842 inches

Radius

11.1421 inches

Circumference

70.0078 inches

Area

390.0168 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 = √(390.0168/π) = 11.1421 inches
d = 2 × 11.1421 = 22.2842 inches

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