The complete sentences are :
A) Angles 1 and 5 are Congruent because they are Corresponding angles
B) Angles 4 and 6 are Supplementary because they are Same-side interior angles
Determining the relationship between angles
Angles 1 and 5 are corresponding angles from the diagram and corresponding angles are congruent angles in geometry. while
Angles 4 and 6 are on the same side and are known as same-side interior angles. Summation of angles 4 and 6 add up to 180° therefore they are supplementary angles.
Hence we can conclude that the complete sentences realting to your question are as written above.
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