1. The problem statement, all variables and given/known data While taking a ride in a hot-air balloon, Fran wonders how high he is. To find out, he chooses a landmark that is to the east of the balloon and measures the angle of depression to be 54 degrees. A few minuets later, after traveling 100 feet east, the angle of depression to the same landmark is determined to be 61 degrees. Use this information to determine the height of the balloon. 2. Relevant equations Standard Trig Identities 3. The attempt at a solution I have a firm grasp of the material in general but am struggeling with properly sketching the problem. I have attatched my representation of the problem in picture form. My problem is that we have only studied right triangle trig (2 weeks into course) so my value of 100 feet has to, in some way, be associated with the right triangle portion of the drawing. I went ahead a solved the problem assuming i can use the 100 feet in the right triangle portion of the drawling: my work is below: Tan 61 degrees = H/100ft (100ft)(Tan 61 degrees)= H Answer: Approx. 180.41 feet. I am not sure if it is right, if it is then I still dont quite understand how to visualize the problem. What do you guys think?