Geometry question...Putting up attachment...

Question

kamibug · Answer

attachment

kamibug · Answer

Please explain the steps. I'm in extreme need of review. Thank you! =)

hartnn · Answer

in the triangle
 helicopter- G - Zoo

you need the ADJACENT SIDE of 60 degree angle, which is  G- Zoo 
and you have OPPOSITE side of 60 degree angle, which is 300sqrt 3 
so, can you tell me which ration you can use here ?? which ratio deals with opposite side and adjacent side ??

kamibug · Answer

I would use the tangent ratio? 
In this case,...
tan60= 300sqrt3 / G-Zoo
?

hartnn · Answer

thats absolutely correct! :)

kamibug · Answer

Alright, but the question is asking for the distance between the zoo and the library.

kamibug · Answer

According to the lesson, this should have something to do with angles of elevation and depression. :-/

hartnn · Answer

sorry for late reply 

now to get distance zoo-library,
we only need G-Library
because 
Zoo- library = G- Library  -  G-Zoo

in the triangle
 helicopter- G - Library 

you need the ADJACENT SIDE of 60 degree angle, which is  G- Library
and you have OPPOSITE side of 60 degree angle, which is 300sqrt 3 

again use tan to find G-Library

kamibug · Answer

Thank you! =) I think I get it now. I can find GL by using the tan30 ratio and then find GZ by using the tan60 ratio. After I have the two sides I'll just subtract GZ from GL. Correct? :)

hartnn · Answer

very correct :)