Circle with Area 129.0344 Square Inches

Instant diameter calculation and visualization

Diameter

12.8176 inches

Radius

6.4088 inches

Circumference

40.2678 inches

Area

129.0344 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 = √(129.0344/π) = 6.4088 inches
d = 2 × 6.4088 = 12.8176 inches

Similar Calculations