Circle with Area 312.0109 Square Inches

Instant diameter calculation and visualization

Diameter

19.9315 inches

Radius

9.9657 inches

Circumference

62.6166 inches

Area

312.0109 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 = √(312.0109/π) = 9.9657 inches

                            d = 2 × 9.9657 = 19.9315 inches

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