Circle with Area 311.58 Square Inches

Instant diameter calculation and visualization

Diameter

19.9177 inches

Radius

9.9589 inches

Circumference

62.5734 inches

Area

311.58 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 = √(311.58/π) = 9.9589 inches

                            d = 2 × 9.9589 = 19.9177 inches

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