Circle with Area 398.9409 Square Inches

Instant diameter calculation and visualization

Diameter

22.5377 inches

Radius

11.2688 inches

Circumference

70.8042 inches

Area

398.9409 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 = √(398.9409/π) = 11.2688 inches

                            d = 2 × 11.2688 = 22.5377 inches

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