The complete statements for the angles as in the task content are:
It follows from the task content that the arrangement involves two parallel lines q and s which are cut by transversal line r.
On this note, according to the description in the task content, the angles formed at the intersections are related as follows;
Angles 1 and 5 are congruent because they are
corresponding angles.
Angles 4 and 6 are congruent because they are alternate angles.
Read more on alternate and corresponding angles;
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