JEE Main2019Math
Q.
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 at B. The height (in m) of the lamp-post is :
- A
- B
- C
- D
Solution
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 at B. The height (in m) of the lamp-post is :