Circle with Area 129.2774 Square Inches

Instant diameter calculation and visualization

Diameter

12.8297 inches

Radius

6.4148 inches

Circumference

40.3057 inches

Area

129.2774 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 = √(129.2774/π) = 6.4148 inches

                            d = 2 × 6.4148 = 12.8297 inches

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