Question 1200433
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It is a TWIN problem to another problem, solved today in this forum under this link


<A HREF=https://www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.1200432.html>https://www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.1200432.html</A>


https://www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.1200432.html



Keep in mind that the angle of depression of point X from point Y is the same 
as the angle of elevation of point Y from point X.



So, having that solution as a TEMPLATE, solve this current problem in the same way.