# new chapter start

• January 17th 2010, 08:41 PM
scrub
new chapter start
I,ve just started vectors & oblique triangles. Without any instruction thus far, can anyone explain this begining process problem? 6.o cm, 150degrees; 1.8cm, 315 degrees. draw the given vectors &find their sum graphically. magnitude is first, followed by direction as angle in standard position. 2d & it is two problems two answers, I apologize, it was one question. I just started this chapter after trig functions of any angle and this is also my first time on this site. I hope I haven't posted wrong.
• January 17th 2010, 08:53 PM
Prove It
Quote:

Originally Posted by scrub
I,ve just started vectors & oblique triangles. Without any instruction thus far, can anyone explain this begining process problem? 6.o cm, 150degrees; 1.8cm, 315 degrees. draw the given vectors &find their sum graphically. magnitude is first, followed by direction as angle in standard position.

Are these vectors in 2D or 3D?

Are these angles taken between each vector and the $x$ axis?
• January 18th 2010, 11:48 AM
scrub
New problem, may have stated last one incorectly.
Two problems in one. 3.6cm, 0 degrees; 4.3cm, 90 degrees. draw given vectors and find their sum graphically. Magnitude is given first, followed by direction as an angle in standard position.