Q. The cross-section of a road partly in banking and partly in cutting is shown in the given figure. Thearea of the shaded portion is (Solved)
1. b - rd)²/(r - s)
2. b - rd)²/(r + s)
3. ½ × (b + rd)²/(r - s)
4. b - rd)²/(s - r)
- a. b - rd)²/(r - s)