A flagstaff of 5 m height stands on a building of height 25 m. At an observer at a height of 30 m, the flagstaff and the building subtend equal angles. What is the distance of the observer from the top of the flagstaff?
Q1. A flagstaff of 5 m height stands on a building of height 25 m. At an observer at a height of 30 m, the flagstaff and the building subtend equal angles. What is the distance of the observer from the top of the flagstaff?
Answer: 25√3 m
Explanation: Using the tangent function for the angles subtended by the flagstaff and the building, we can derive the distance of the observer.