Step-by-Step Solution
- Start with the circle area formula: A = πr²
- Solve for radius: r = √(A/π)
- Calculate diameter: d = 2r
r = √(21.3863/π) = 2.6091 inches
d = 2 × 2.6091 = 5.2182 inches
Instant diameter calculation and visualization
r = √(21.3863/π) = 2.6091 inches
d = 2 × 2.6091 = 5.2182 inches