Lamp Post Height Triangular Plot (Jee Mains) | ExamDuo
Heights and Distances
Medium
Lamp Post Height Triangular Plot
Consider a triangular plot ABC with sides AB = 7m, BC = 5m and CA = 6m. A vertical lamp-post at the mid point D of AC subtends an angle 30° at B. The height (in m) of the lamp-post is: