# Thread: Unknown Angles

1. ## Unknown Angles

In this question will x be equal to 53 and y=?

2. If the 53° is the lower right angle in the upper triangle (hard to tell with your diagram), then x = 53° would be incorrect. The lower left angle in the upper triangle would be 74°, which means that the supplementary angle for x is also 74°, so x = 106°. y = 360° - 53° = 307°.