Circle with Area 393.7905 Square Inches

Instant diameter calculation and visualization

Diameter

22.3917 inches

Radius

11.1959 inches

Circumference

70.3457 inches

Area

393.7905 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 = √(393.7905/π) = 11.1959 inches

                            d = 2 × 11.1959 = 22.3917 inches

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