Download 3.2 Outline: Parallel Lines and Angles

3.2 Parallel Lines and Angles
Geometry
Name _________________________
Date_______________
d
1 = 123o
3
7
4
6 = 57o
5
m
2
h
8
1. Which line is the transversal? ________________
2. Find all the angles’ measures using the two given angles.
3. List four pairs of corresponding angles and their measures (Postulate 15)
Pair #1 (name of angle)
Its measure
Pair #2 (name of angle)
Its measure
Pair #3 (name of angle)
Its measure
Pair #4 (name of angle)
Its measure
4. What do you notice about the measures of corresponding angles? _____________
_____________________________________________________________________
5. List two pairs of alternate interior angles and their measures (Theorem 3.1)
Pair #1 (name of angle)
Its measure
Pair #2 (name of angle)
Its measure
6. What do you notice about the measures of alternate interior angles?
_________________________________________________________________
7. List two pairs of alternate exterior angles and their measures (Theorem 3.2)
Pair #1 (name of angle)
Its measure
Pair #2 (name of angle)
Its measure
8. What do you notice about the measures of alternate exterior angles
_________________________________________________________________
9. List two pairs of consecutive interior angles and their measures (Theorem 3.3)
Pair #1 (name of angle)
Its measure
Pair #2 (name of angle)
Its measure
10. What do you notice about the measures of consecutive interior angles (HINT:
add them up)? ______________________________________________________
11. If m2  90 o , what must m6 be? ________________________
12. What types of lines form 90o angles? ___________________________________