- A135
- B125
- C115
- D250
Step-by-Step Solution
The interior angle adjacent to the 125 exterior angle is 180 - 125 = 55 (linear pair). Its co-interior partner is 180 - 55 = 125°.
Answer: B) 125
When a transversal meets two parallel lines, an exterior angle on one side is 125°.
Find the interior angle on the same side of the transversal at the other parallel line (its co-interior partner).
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