Homework Help: Trigo

Posted by Elmo on Sunday, March 6, 2011 at 2:15am.

From a window of a building A, the angle of elevation of the top of building B is 35 degrees and the angle of depression of the bottom of building B is 20 degrees. If the buildings are 25m. horizontally apart, Compute for height of the window from the ground? And compute for height of Building B?

Trigonometry - drwls, Sunday, March 6, 2011 at 11:33am
Let H be the window height, and X = 25 X = 25 m be the separation of buildings.

L tan20 = H
H = 9.10 m

Building B height = H + L tan 35
= 9.10 + 17.51 = 26.61 m

Draw yourself a figure and these relationships sould be obvious to you.

Answer this Question

Related Questions

Pre-Calculus - 1.The angle of elevation to top of a building from a point on the...
Trig - From a point A on the ground, the angle of elevation to the top of a tall...
Trig - The angle of elevation to the top of a building from a point on the ...
math - A flagpole and a building stands on the same horizontal level.From the ...
maths - An observer on top of a building 66 metres high,finds the angle of ...
Pre calculus - From h a point A that is 10 meters abov level ground, the angle ...
math - A man is standing 35 m from a building. On top of the building is a flg. ...
precal - From a point B that is 9 meters above level ground , the angle of ...
Trig - A 60-foot flagpole stands on top of a building. From a point on the ...
trigo - the L and C State building is 1,250 m tall. What is the angle of ...

For Further Reading

First Name:
School Subject:
Answer: