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How do you find the answer if you only know 1 degree in the triangle? And you have to figure out the other 2 degrees

Using degrees to find the value of x in a triangle.

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Ebenezer O. | Aerospace Engr & Air Traffic Control Grad For General Ed. TutoringAerospace Engr & Air Traffic Control Gra...
4.6 4.6 (13 lesson ratings) (13)
I would believe at least one side is given. To find the other angles, you might want to you either sine, cosines or tangent. 
Sinθ = opposite (opp) / Hypothenuse (hyp)
Cosθ = adjacent (adj) / Hypothenuse (hyp)
Tanθ = opposite (opp) / adjacent (adj)
where θ is the known angle.
 you could also use the above to find the length of the unknown sides.
Also so remember the sum angles if a triangle is 180.