Respuesta :

Answer:

b=109 degree

Step-by-step explanation:

26 + 45 + b=180 degree (being sum of interior angles of a triangle)

71 + b = 180

b=180-71

b=109 degree

Step-by-step explanation:

109°

I am.proooooooooooo

yeahhhhhhhhhh brooooooooooo

ask me anything