Circle with Area 129.7958 Square Inches

Instant diameter calculation and visualization

Diameter

12.8554 inches

Radius

6.4277 inches

Circumference

40.3864 inches

Area

129.7958 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 = √(129.7958/π) = 6.4277 inches
d = 2 × 6.4277 = 12.8554 inches

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