How do I determine the height of a building with two seperate angles of elevation and...

LEM

New member
...only a part of the base? basically.. a guy takes an angle reading to the top, then moves backwards x ft (I have this quantity), and takes a second angle reading. What functions/identities do I use to solve this?
first measure is 32.2 degrees.. he walks back 52.7 feet.. and his new measure is.. 26.4 degrees.
I'm more concerned with process than an answer. Thanks much.
 
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