Circle with Area 390.6971 Square Inches

Instant diameter calculation and visualization

Diameter

22.3036 inches

Radius

11.1518 inches

Circumference

70.0689 inches

Area

390.6971 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 = √(390.6971/π) = 11.1518 inches

                            d = 2 × 11.1518 = 22.3036 inches

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