Circle with Area 38.9215 Square Inches

Instant diameter calculation and visualization

Diameter

7.0396 inches

Radius

3.5198 inches

Circumference

22.1157 inches

Area

38.9215 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 = √(38.9215/π) = 3.5198 inches
d = 2 × 3.5198 = 7.0396 inches

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