Circle with Area 7.8478 Square Inches

Instant diameter calculation and visualization

Diameter

3.161 inches

Radius

1.5805 inches

Circumference

9.9307 inches

Area

7.8478 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 = √(7.8478/π) = 1.5805 inches
d = 2 × 1.5805 = 3.161 inches

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