Circle with Area 66.78 Square Inches

Instant diameter calculation and visualization

Diameter

9.221 inches

Radius

4.6105 inches

Circumference

28.9686 inches

Area

66.78 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 = √(66.78/π) = 4.6105 inches

                            d = 2 × 4.6105 = 9.221 inches

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