Circle with Area 77.8403 Square Inches

Instant diameter calculation and visualization

Diameter

9.9554 inches

Radius

4.9777 inches

Circumference

31.2757 inches

Area

77.8403 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 = √(77.8403/π) = 4.9777 inches
d = 2 × 4.9777 = 9.9554 inches

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