Circle with Area 77.7989 Square Inches

Instant diameter calculation and visualization

Diameter

9.9527 inches

Radius

4.9764 inches

Circumference

31.2674 inches

Area

77.7989 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 = √(77.7989/π) = 4.9764 inches
d = 2 × 4.9764 = 9.9527 inches

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