Applications of Trigonometry Heights and Distances Chapter 9 Exercise 9.1 Question 14
14. A 1.2 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 88.2 m from the ground. The angle of elevation of the balloon from the eyes of the girl at any instant is 60
. After some time, the angle of elevation reduces to 30
. Find the distance traveled by the balloon during the travel.