Circle with Area 78.1863 Square Inches

Instant diameter calculation and visualization

Diameter

9.9775 inches

Radius

4.9887 inches

Circumference

31.3451 inches

Area

78.1863 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 = √(78.1863/π) = 4.9887 inches
d = 2 × 4.9887 = 9.9775 inches

Similar Calculations