2166. If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight w per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is )/(1 + sin )]_________________? September 7, 2025 by Admin A. h = (W/Aw) [(1 – B. h = (W/Aw) [(1 + )/(1 + sin )] C. h = (W/Aw) [(1 – )/(1 + sin )]² D. h W/Aw) [(1 – )/(1 + sin )]² ✅ The correct answer is option C.
