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July 25th, 2007, 02:52 PM  #1 
Senior Member Joined: Dec 2006 From: New Jersey Posts: 378 Thanks: 1  Height of Helicopter
Tow men measure the angle of elevation of a helicopter at the same time. One angle is measured as 35 degrees, the other as 50 degrees. If the two men are 100 feet apart and the helicopter lies over the line joining them, how high is the helicopter?

July 26th, 2007, 12:56 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,972 Thanks: 2222 
Let h be the altitude of the helicopter (which I assume is what is wanted). You will also need the cotangents of the angles of elevation. Can you now finish this question by yourself? 
July 26th, 2007, 12:56 PM  #3 
Senior Member Joined: Dec 2006 From: New Jersey Posts: 378 Thanks: 1  yes
Yes, I can if you set up the equation.

July 26th, 2007, 01:01 PM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,972 Thanks: 2222 
Please make an attempt (after having read my replies to your other recently posted problems).


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