SRL Archive - Mathematics

Well I failed a problem, cba why I can't do it, suppose I've never came across it and I just don't know what to properly do..

Find h, in measure of feet.


Given the problem, I know the top point of the tower is sin(163), I think.
And the other angles are simple to solve for too.. However do I apply the given measurement to the other sides?

Cheers,
Lj

https://docs.google.com/open?id=0BziF0YKGHoqvUC1QVnpGQWpjNkk do excuse the rough workings
159.965 ft (3d.p.)

Soh-Cah-Toa

From: Rezozo
Soh-Cah-Toa

doesnt explain much

From: Enslaved
https://docs.google.com/open?id=0BziF0YKGHoqvUC1QVnpGQWpjNkk do excuse the rough workings
159.965 ft (3d.p.)

Bwuuuah, totally spaced on law of sines/cosines… -.-

Thank you :)

Cheers>
Lj

Assuming that the entire length of the bottom thing is 407, feet
so
tan(17)=height/407
therefore
height=407*tan(17)
height = 124.419 feet

Edit: Oh right its only the 17 degree part thats 407. Its a simple cos rule then

Why would you assume that? See its smushed to the side right?

Also, yea. Law of Sines…Props to Enslaved. Last time I did this was in 9th grade :p
~Rez

Geometry* problem

doing EigenVectors assignment atm , kinda related