Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
DrummerVim
Group Title
http://gyazo.com/ecaceb89b3a014abf50e53dbeaebf4ef.png?1354481207
I can't get my head around this question. I've got that SR=PRtan35 and SR=QRtan40, which looks like it could help, but I can't figure it out. Please help? :)
 one year ago
 one year ago
DrummerVim Group Title
http://gyazo.com/ecaceb89b3a014abf50e53dbeaebf4ef.png?1354481207 I can't get my head around this question. I've got that SR=PRtan35 and SR=QRtan40, which looks like it could help, but I can't figure it out. Please help? :)
 one year ago
 one year ago

This Question is Open

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
let h = height of pole sin(40) = h/QS QS*sin(40) = h QS = h/sin(40) sin(35) = h/PS PS*sin(35) = h PS = h/sin(35)
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
each triangle PRS and QRS are right triangles so we can say PR^2 + RS^2 = PS^2 PR^2 + h^2 = PS^2 PR^2 + h^2 = (h/sin(35))^2  QR^2 + RS^2 = QS^2 QR^2 + h^2 = QS^2 QR^2 + h^2 = (h/sin(40))^2
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
Now use what you found SR=PRtan35 and SR=QRtan40 PRtan35 = QRtan40 PR = QR*tan(40)/tan(35)
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
Since PR = QR*tan(40)/tan(35) we go from PR^2 + h^2 = (h/sin(35))^2 to ( QR*tan(40)/tan(35) )^2 + h^2 = (h/sin(35))^2 if you let x = QR and y = h, then we get this equation ( x*tan(40)/tan(35) )^2 + y^2 = (y/sin(35))^2
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
again, let x = QR and y = h to go from QR^2 + h^2 = (h/sin(40))^2 to x^2 + y^2 = (y/sin(40))^2
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
so you now have these 2 equations (with 2 unknowns) ( x*tan(40)/tan(35) )^2 + y^2 = (y/sin(35))^2 x^2 + y^2 = (y/sin(40))^2
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.