Circle with Area 77.8469 Square Inches

Instant diameter calculation and visualization

Diameter

9.9558 inches

Radius

4.9779 inches

Circumference

31.277 inches

Area

77.8469 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 = √(77.8469/π) = 4.9779 inches

                            d = 2 × 4.9779 = 9.9558 inches

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