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Lesson 3-2 Properties of Parallel Lines
Use the diagram below. Find the measure of each angle. Justify your answer.
-
∠
1
angle 1
-
∠
2
angle 2
-
∠
3
angle 3
-
∠
4
angle 4
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Lesson 4-1 Naming Congruent Parts
△
P
A
C
≅
△
D
H
L
.
white up pointing triangle p eh c approximately equal to white up pointing triangle d h l . Complete each congruence statement.
-
P
C
¯
≅
_
?
_
p c bar , approximately equal to , modified under bar with
-
∠
H
≅
_
?
_
angle , h approximately equal to . modified under bar with
-
∠
P
C
A
≅
_
?
_
angle p c eh approximately equal to , modified under bar with
-
△
H
D
L
≅
_
?
_
white up pointing triangle h d l approximately equal to , modified under bar with
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Lessons 4-2 and 4-3 Triangle Congruence
Write a congruence statement for each pair of triangles. Explain why the triangles are congruent.
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-
-
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Lesson 5-1 Midsegments of Triangles
Use the diagram below for Exercises 12–13.
-
If
B
C
=
12
,
b c , equals 12 , comma then
B
F
=
_
?
_
b f equals , modified under bar with and
D
E
=
_
?
_
.
d e equals . modified under bar with
- If
E
F
=
4.7
,
e f , equals 4.7 comma then
A
D
=
_
?
_
eh d equals , modified under bar with and
A
C
=
_
?
_
.
eh c equals . modified under bar with