Respuesta :

Answer:

B. 40

Step-by-step explanation:

Angle C is linear with ACD, so the 2 angles = 180 degrees. 180 - 155 = 25.

All 3 angles need to add to 180, so 115 + 25 + angle B = 180

140 + angle B = 180, so angle B is 40 degrees.

Answer:

B) 40

Step-by-step explanation: