Step-by-Step Solution
- Start with the circle area formula: A = πr²
- Solve for radius: r = √(A/π)
- Calculate diameter: d = 2r
r = √(12.3845/π) = 1.9855 inches
d = 2 × 1.9855 = 3.9709 inches
Instant diameter calculation and visualization
r = √(12.3845/π) = 1.9855 inches
d = 2 × 1.9855 = 3.9709 inches