Circle with Area 129.1636 Square Inches

Instant diameter calculation and visualization

Diameter

12.824 inches

Radius

6.412 inches

Circumference

40.2879 inches

Area

129.1636 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 = √(129.1636/π) = 6.412 inches
d = 2 × 6.412 = 12.824 inches

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