Circle with Area 78.1991 Square Inches

Instant diameter calculation and visualization

Diameter

9.9783 inches

Radius

4.9891 inches

Circumference

31.3477 inches

Area

78.1991 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 = √(78.1991/π) = 4.9891 inches

                            d = 2 × 4.9891 = 9.9783 inches

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