In triangle ABC, what is m and B
A. 30°
B. 40°
C. 75°
D. 85°
2 answers:
Answer:
B B.......B........B......
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.
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