Circle with Area 78.1946 Square Inches

Instant diameter calculation and visualization

Diameter

9.978 inches

Radius

4.989 inches

Circumference

31.3468 inches

Area

78.1946 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 = √(78.1946/π) = 4.989 inches

                            d = 2 × 4.989 = 9.978 inches

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