b)1 and 3 are angle pairs that are congruent because they are corresponding angles
The angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel then the corresponding angles are equal.
since a) 1 and 6 are opposite angles , can not be corresponding
angle 1 and angle 3 are corresponding angles as both the angles are occupying the same relative position or both the angles are on the same side of the transversal .
hence, correct answer is b) 1 and 3
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