Circle with Area 128.3044 Square Inches

Instant diameter calculation and visualization

Diameter

12.7813 inches

Radius

6.3907 inches

Circumference

40.1537 inches

Area

128.3044 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 = √(128.3044/π) = 6.3907 inches
d = 2 × 6.3907 = 12.7813 inches

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