Hello everyone, today I am faced with a confusing trigonometry world problem. I need help in building a visual image of the world problem and it is been very hard for me to do that. I know the answer is21.3mI need to know how to get there. All right here its:

From the top of a cliff 32m high it is noted that the angles of depression of two boats lying in the line due east of the cliff are 21degrees and 17degrees. How far are the boats apart?

Thank You For the Help!