Answer:
1. 1 & 3, and 2 & 4.
2. 3 & 2
3. 1 & 4
4. 1 & 2 and 3 & 4.
5. 1 = 3 and 2 = 4
6. congruent.
7. supplementary.
8. congruent.
9. supplementary.
10. congruent.
11. congruent.
Step-by-step explanation:
1. Two pairs of vertical angles are 1 & 3, and 2 & 4.
2. The alternate interior angles from the diagram are 3 & 2
3. 1 & 4 = the alternate exterior angles.
4. 1 & 2 and 3 & 4 are the two pairs of corresponding angles are.
5. The pair of angles that are congruent are 1 = 3 and 2 = 4 {Since, they are vertically opposite angles.}
6. Alternate interior angles = congruent.
7. Linear pairs are supplementary.
8. Corresponding angles = congruent.
9. Same side interior angles are supplementary.
10. Vertical angles are congruent.
11. Alternate exterior angles = congruent. (Answer)
