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Lines and Angles — quick quiz

5 real SOF IMO questions on Lines and Angles. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

MEDIUM

In the figure, line AB is parallel to line CD, and line EF is a transversal. If angle 1 measures 125 degrees and angle 1 and angle 2 form a linear pair, find the measure of the corresponding angle to angle 2 on line CD.