Conversion formulas for carbon fiber cloth and steel bars

1. Area calculation formula for carbon fiber cloth: Area = Width × Length, where the units for width and length are meters.
2. Area calculation formula for steel bars: Area = π/4 × Diameter², where the unit for diameter is millimeters.
3. Due to the small thickness of carbon fiber cloth, which can be ignored compared to the diameter of steel bars, the area of carbon fiber cloth can be calculated using the conversion formula for the area of steel bars.
Conversion formula: Area of carbon fiber cloth ÷ (π/4 × Diameter² of steel bar) = Length of steel bar.