can some1 just help me out a quickie Watch
but like how would i figure that in an exam
do i just learn all the special angles?
or draw 2 triangles,
1st - angles of 90, 60, 30 and then the lengths 1,2, root 3
2nd - angles of 45, 45, 90 and lengths of 1,1, and root 2
then use trig to work out the angles