Circle with Area 129.9311 Square Inches

Instant diameter calculation and visualization

Diameter

12.8621 inches

Radius

6.431 inches

Circumference

40.4075 inches

Area

129.9311 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 = √(129.9311/π) = 6.431 inches

                            d = 2 × 6.431 = 12.8621 inches

Similar Calculations

64.9656 in² = 9.0949 inches diameter Calculate circle diameter for 64.9656 square inches
97.4483 in² = 11.1389 inches diameter Calculate circle diameter for 97.4483 square inches
162.4139 in² = 14.3803 inches diameter Calculate circle diameter for 162.4139 square inches
194.8967 in² = 15.7528 inches diameter Calculate circle diameter for 194.8967 square inches