Answer:
angles x and y are supplementary
Explanation:
You want the relationship between angles x and y in the figure shown.
Corresponding angles
Where a transversal crosses parallel lines, corresponding angles are congruent. That means the angle adjacent to angle y to its left is congruent to angle x.
Linear pair
Angles that together form a line are a linear pair. They are supplementary: their total is 180°.
The angle to the left of angle y forms a linear pair with angle y. Since that angle is congruent to angle x, it means that ...
angles x and y are supplementary.
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