Circle with Area 81.9866 Square Inches

Instant diameter calculation and visualization

Diameter

10.2171 inches

Radius

5.1085 inches

Circumference

32.0979 inches

Area

81.9866 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 = √(81.9866/π) = 5.1085 inches
d = 2 × 5.1085 = 10.2171 inches

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