Respuesta :

Answer:

180 - 45

Step-by-step explanation:

Find the angle of the unknown question mark

Angle ABC = 180 Degrees

Angle ABD = 45 Degrees

______________________________

Angle DBC = 180 - 45

Angle DBC = 135 Degrees

Sxaxsxa

Answer: 180-45

Step-by-step explanation:

to find the missing angle, subtract the supplementary angle (180) from the angle 45