Page 60 - Math Course 2 (Book 2)

Pairs of Lines and Transversals

MO. 8 - L5c Key Concept Transversal
and Angles
Naming Angles Formed By a Name Angles

Transversal exterior angles ∠1, ∠2, ∠7, ∠8

Vocabulary A-Z interior angles ∠3, ∠4, ∠5, ∠6

Let us learn some vocabulary consecutive interior
angles ∠3 and ∠6, ∠4 and ∠5

alternate exterior angles ∠1 and ∠7, ∠2 and ∠8
consecutive interior angles

∠4 and ∠6, ∠ 3 and ∠5. alternate interior angles ∠3 and ∠5, ∠4 and ∠6

Exterior corresponding angles ∠1 and ∠5, ∠2 and ∠6,
2 1 ∠3 and ∠7, ∠4 and ∠8
4 3 line x Transversal p intersects lines q and r.
Interior
6 5 line y p
8 7
Exterior
1 2
alternate exterior angles 4 3 q
∠2 and ∠7, ∠1 and ∠8. r
5 6
Exterior 8 7
2 1
4 3 line x
Interior
6 5 line y
8 7
Exterior
Let’s Begin

alternate interior angles

∠4 and ∠5, ∠3 and ∠6.
Identify Angle Relationships
Exterior
2 1
4 3 line x Examples
Interior
6 5 line y f
8 7
Exterior
1 2 a
corresponding angles 4 3

∠1 and ∠5, ∠2 and ∠6,∠3 and ∠7, ∠4 and ∠8.
5 6
Exterior
2 1 8 7 b
4 3 line x
Interior 9 10
6 5 line y 11 12 c
8 7
Exterior

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