Consider a triangular plot ABC with sides AB = 7 m, BC = 5 m and CA = 6 m.
Channel: Doubtnut
Date: 2019-12-29

Consider a triangular plot ABC with sides AB = 7 m, BC = 5 m and CA = 6 m. 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