If you are struggling with the angles and conversions then try this, or else find the button on ur calculator!
http://id.mind.net/~zona/mmts/trigonometryRealms/degMinSec/degMinSec.htm
We will come back to this later in the connected particles section
but you could try this Walter app for a look at the different components
Wally demonstrates the interaction of 3 forces
Now go test yourself
http://www.emanuelschool.org.uk/physics/alevel/aprobs/Mechanics/Resolution%20Of%20Forces.pdf
The following link is not required on this course ... but if you are doing Honours maths for the leaving it will help
http://physics.info/vector-multiplication/
For the Higher Level Maths Course Vectors Topic this video might help
I hope this will help explain to you the interaction of two and more forces
http://vnatsci.ltu.edu/s_schneider/physlets/main/force_sled1.shtml