Circle with Area 78.215 Square Inches

Instant diameter calculation and visualization

Diameter

9.9793 inches

Radius

4.9897 inches

Circumference

31.3509 inches

Area

78.215 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 = √(78.215/π) = 4.9897 inches
d = 2 × 4.9897 = 9.9793 inches

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