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This worksheet is asking to identify different pairs of angles formed by two parallel lines intersected by a transversal. Based on the labels, the following types of angle pairs can be classified:

1. **Same-side interior angles**: These are on the same side of the transversal and between the two parallel lines. They are supplementary (sum to 180°).
2. **Corresponding angles**: One angle is on the exterior and the other on the interior but on the same side of the transversal. They are congruent (equal in measure).
3. **Alternate interior angles**: These are on opposite sides of the transversal but inside the parallel lines. They are congruent.
4. **Alternate exterior angles**: These are on opposite sides of the transversal but outside the parallel lines. They are congruent.
5. **Linear pair (adjacent angles)**: These form a straight line and are supplementary.
6. **Vertical angles**: These are opposite each other when two lines intersect. They are congruent.

Now, let's go over each item in the worksheet based on these definitions:

1. **Same-side interior angles**, supplementary (correct).
2. **Linear pair**, supplementary (correct).
3. **Vertical angles**, congruent.
4. **Corresponding angles**, congruent.
5. **Alternate interior angles**, congruent.
6. **Same-side interior angles**, supplementary.
7. **Vertical angles**, congruent.
8. **Alternate exterior angles**, congruent.
9. **Corresponding angles**, congruent.
10. **Alternate interior angles**, congruent.
11. **Vertical angles**, congruent.
12. **Linear pair**, supplementary.

Would you like a more detailed explanation of any of these? 

Here are five follow-up questions to expand on this:

1. What is the definition of corresponding angles in relation to parallel lines and a transversal?
2. How do you determine if two angles are supplementary or congruent?
3. Can you explain why vertical angles are always congruent?
4. What is the significance of a transversal in determining angle relationships?
5. How can you use these angle relationships to solve for unknown angle measures?

**Tip**: Always remember that parallel lines create predictable angle relationships when cut by a transversal, which helps in solving geometric problems efficiently!

Identify each pair of angles as corresponding, alternate interior, alternate exterior, same-side interior, vertical, or adjacent. THEN say if they are CONGRUENT or SUPPLEMENTARY.

Learn how to classify angle pairs formed by parallel lines and a transversal. Understand the differences between corresponding, alternate interior, alternate exterior, vertical, and same-side interior angles. Determine if they are congruent or supplementary.

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