Angle of Elevation and Depression Word Problem - Trigonometry

In this video, I go through an angle of elevation and depression word problem. From the foot of a building, I have to look upwards at an angle of 22 degrees to see the top of a tree. From the top of a 150 ft building, I have to look down at an angle of depression of 50 degrees to look at the top of the tree. To the nearest thousandth of a foot, how tall is the tree, and how far is the building from the tree? I solve this problem using the basic trig functions (sin, cos, tan), along with geometry concepts such as properties of rectangles and alternate interior angles. If this video was helpful, please LIKE and SUBSCRIBE. If you have any requests, leave the topic(s) you want me to cover in the COMMENT section. Thanks for watching.