Cosine Rule: HELP! Watch
I've been trying to do some maths revision and in doing so have discovered that I have no idea about Trigonometry, so I have been doing some Trig revision.
I got stuck on questions 8, 9 and 10 on this worksheet.
If anyone could please provide me a solution, I would be very grateful.
How do you find an angle when you only have 2 sides?!?!
- Study Helper