Circle with Area 31.3211 Square Inches

Instant diameter calculation and visualization

Diameter

6.315 inches

Radius

3.1575 inches

Circumference

19.8392 inches

Area

31.3211 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 = √(31.3211/π) = 3.1575 inches

                            d = 2 × 3.1575 = 6.315 inches

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