To answer these you must know Soh Cah Toa
Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj
I’ll do #23 for you.
x = the angle
Tan (x) = 8/6 (8 is opp of ang and 6 is adj)
Then you must do the inverse
x = tan^-1 (8/6)
Then use a calculator to solve for x.
Use this system for the rest of the problems (won’t necessarily be the tangent)