From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are 6 degrees and 13 degrees respectively. The points and the tower are in the same vertical plane and the distance from A to B is 1.1 km. Determine the height of the tower.
I've thought this over numerous times, and have searched online for it but I keep getting different answers and methods.
I know I have to use trig to figure it out, I just don't understand how the diagram would look (is the base of the tower virtually nothing?)
How do I find the length from A to the tower, and B to the tower?
I think I'm supposed to use tangent (O/A) for this, but every place I've searched they use Adjacent/Opposite
which is really confusing me
please help!
1 answer
check the related questions below. Looks like bobpursley did this one already.
7 answers