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Sagot :
Answer:
- B. 80°
Step-by-step explanation:
The triangle in the middle has angles that:
- Supplementary with 110°
- Supplementary with 150°
- Same with x, as alternate exterior angles are congruent
Interior angles of a triangle sum to 180°
Find x:
- x + (180° - 110°) + (180° - 150°) = 180°
- x + 70° + 30° = 180°
- x + 100° = 180°
- x = 80°
Correct choice is B
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