Vectors find following in terms of x

[BeckyStar678]

Homework Statement

express the following in terms of x, given that m,n,o and p are each 8 m long.
so the first diagram has x pointing upward and then m connected, pointing downward (forming roof shape) and the angle formed is 140 degrees (under the roof).
the next one is also a roof shape but x and n are pointing in diff dirrections instead of the same way. if x is extended, i can't really make a right triangle. so I am confused.

Homework Equations

The Attempt at a Solution

fr the first one, do i just extend x to make a right triangle on m and then get 40 degrees for one of the angles. so i would get 6 for the line that was extended. is this the answer?

 

[loonychune]

I can't visualise this problem and can't understand what it is you are actually trying to express in terms of x...

Short of drawing a diagram, do you think you've explained the problem well enough for someone here, someone who's never seen the problem before, to answer it?

 

[BeckyStar678]

I can't visualise this problem and can't understand what it is you are actually trying to express in terms of x...

Short of drawing a diagram, do you think you've explained the problem well enough for someone here, someone who's never seen the problem before, to answer it?

i drew diagrams for you at the link below

http://s446.photobucket.com/albums/qq190/BeckyStar678/?action=view&current=physics.jpg

 

[BeckyStar678]

i drew diagrams for you at the link below

http://s446.photobucket.com/albums/qq190/BeckyStar678/?action=view&current=physics.jpg

also, underneath the same problem (the one that states to find the following in terms of x) there are these questions and I am not really sure what's being asked.

X= 4i-2j
Q= -6i-5j
X= -8i-3j
R= 5i+ 1j

do i just use pythagorean theorem for these and find that 3rd side?

 

[loonychune]

Sorry Becky I know i asked you to draw a diagram but I still can't quite get my head round this..

You might want to repost this problem if no one replies to this post.