Circle with Area 1.29 Square Inches

Instant diameter calculation and visualization

Diameter

1.2816 inches

Radius

0.6408 inches

Circumference

4.0262 inches

Area

1.29 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 = √(1.29/π) = 0.6408 inches

                            d = 2 × 0.6408 = 1.2816 inches

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