Find the missing angels please help me

2.  In a right triangle the acute angles are complementary, adding to 90°

50°

3. In a triangle the angles add to 180°

30°

4.  Two lines crossing make angles that are linear pairs, supplementary, adding to 180°.  So the interior angle next to 155° is 25°.   So the two angles so far add to 25° + 60° = 85°.

The remaining triangle angle is the supplement of that (all three add to 180) and the exterior ? angle forms a linear pair with that one, so is the supplement of the supplement, which is the angle itself.

85°

5.  The interior supplement to 156° is 24°.  The missing angle in the bottom triangle is 180°-20°-35° = 125°.   Those are vertical angles so 125° is also the angle in the second triangle.

The triangle angles sum to 180° so the ? angle is

? = 180° - 24° - 125° = 31°

31°

6. We have 55° left in the left triangle, and 180°-55°-50°=75° for the left angle in the right triangle.   That leaves ?=180°-75°-35°=70°

70°

i think this could be a possible answer (1 / 84) -1

good luck! : d