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

Question

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

Answer 1

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.