Respuesta :

Answer:

75

if your teacher says

that it is wrong then tell him/her to study once again

Answer:

x = 75

Step-by-step explanation:

The angle vertically opposite 50° is also 50° ( congruent )

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles from 180° for x

x = 180° - (50 + 55)° = 180° - 105° = 75°