Respuesta :

Answer:

O,M,N

Step-by-step explanation:

Angles in a triangle add up to 180°.

45° + 75° + M = 180°

M = 180° - (45° + 75°)

M = 60°

m + n + O = 180

m + 75 + 45 = 180

m + 120 = 180

m = 180-120

m = 60


so m = 60° , n = 75° , O = 45°

O , m , n