1533. The cross -section of a road partly in banking and partly in cutting is shown in the given figure. The area of the shaded portion is__________________? September 7, 2025 by Admin A. b – rd)²/(r – s) B. b – rd)²/(r + s) C. ½ × (b + rd)²/(r – s) D. b – rd)²/(s – r) ✅ The correct answer is option A.