Circle with Area 129.04 Square Inches

Instant diameter calculation and visualization

Diameter

12.8179 inches

Radius

6.409 inches

Circumference

40.2687 inches

Area

129.04 in²

How to Calculate Circle Diameter from Area

Step-by-Step Solution

Start with the circle area formula: A = πr²
Solve for radius: r = √(A/π)
Calculate diameter: d = 2r


                            r = √(129.04/π) = 6.409 inches

                            d = 2 × 6.409 = 12.8179 inches

Similar Calculations

64.52 in² = 9.0636 inches diameter Calculate circle diameter for 64.52 square inches
96.78 in² = 11.1006 inches diameter Calculate circle diameter for 96.78 square inches
161.3 in² = 14.3309 inches diameter Calculate circle diameter for 161.3 square inches
193.56 in² = 15.6987 inches diameter Calculate circle diameter for 193.56 square inches