Just remember everything on a straight line has to add up to equal 180, and everything around a point (a circle) adds up to 360. You can use that in situations like Q2.6, 4.5i + 5.5i = 360 10i = 360 i = 360/10 i = 36 degrees. Then you just take i and use it to find 4.5i and 5.5i. 4.5 * 36 = 162 5.5 * 36 = 198
Well, that was a lot easier. But, now I got this... Hah, I learnt it 3 years ago but, I've forgotten.. Bad memory! http://imgur.com/9ssS0qB
