3 years ago

Will mark brainliest. Step-by-step please. Thank you very much.

Mathematics

1 answer:

Naily [24]3 years ago

3 0

Answer:

133°

Step-by-step explanation:

angles on a straight line = 180°

180 - 144 = 36°

angles in a triangle = 180°

36 + 31 = 67

180 - 67 = 113

answer = 113°

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