Circle with Area 12.9671 Square Inches

Instant diameter calculation and visualization

Diameter

4.0633 inches

Radius

2.0316 inches

Circumference

12.7652 inches

Area

12.9671 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 = √(12.9671/π) = 2.0316 inches

                            d = 2 × 2.0316 = 4.0633 inches

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