Circle with Area 638.6886 Square Inches

Instant diameter calculation and visualization

Diameter

28.5167 inches

Radius

14.2584 inches

Circumference

89.5879 inches

Area

638.6886 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 = √(638.6886/π) = 14.2584 inches

                            d = 2 × 14.2584 = 28.5167 inches

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