Question

find the solutions of triangle QRS when q=17, R=56 degrees, and r=17

Answer 1

It's an isosceles triangle, so you can easily find the other two angles Q & R.
Then to get the 3rd side, s, you could use the sine rule:
s/sinS = r/sinR & solve to find s.
or if you haven't dont that, split the triangle down the middle to get a right-angled triangle & use standard trig.

Answer 2

kk, thank you. I was using cos and that messed me up