Answer:
I solved example 3, hopefully this helps you solve example 4:
a. 142
b. 38
c. 142
d. 38
e. 38
f. 38
g. 142
Explanation:
When 2 parallel lines are cut by a transversal, then:
1. Corresponding parts are congruent
2. Alternate interior angles are congruent
3. Alternate exterior angles are congruent
4. Consecutive interior angles are supplementary