Page 57 - Math Course 2 (Book 2)

Pairs of Lines and Transversals
Mo. 8

Lesson 5 skew lines

Lines that do not intersect and are not coplanar
are called skew lines.

KEY CONCEPTS: D A
1. Identify the relationships between two lines AE and GF do not C B
or two planes. intersect and are not
2. Identify the sets of lines to which one line coplanar so they are H
is a transversal skew lines. E
3. Name angles formed by a pair of lines and G F
a transversal.

Let’s Begin

MO. 8 - L5a

Identifying Relationships Identify Relationships
Between Pairs of Lines
Examples

Vocabulary A-Z

Let us learn some vocabulary G
F

B

parallel lines
Coplanar lines that do not intersect are called E
parallel lines.
C
D
P Q Name all planes that are parallel to plane AEF.
In the figure, the
arrows indicate that R S Answer plane BHG
PQ is parallel to RS

↔ ↔
PQ || RS Name all segments that intersect AF.

parallel planes Answer EF, GF, DA, and BA
two planes that do not intersect.

Name all segments that are skew to AD.

F
Answer FG, GB, EH, EC, and CH
A

G
B

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