SECTION 3.3 Angles Formed by Transversals

SECTION 3.3Angles Formed by

Transversals

LEARNING TARGETS:1. Students will be able to

identify corresponding angles, alternate interior angles, alternate exterior angles, and same-side interior angles.

VOCABULARY1. Transversal2. Correspondin

g Angles3. Alternate

Interior Angles

4. Alternate Exterior Angles

5. Same-Side Interior Angles

Today is a big vocabulary day! It is important that you take good notes so

that when we introduce new Theorems about these vocabulary words they will make sense.

NOTE:

TRANSVERSAL: A line that intersects two or more coplanar lines

at different points. For instance, in the diagram below, the blue line t

is a transversal.

The angles formed by two lines and a transversal have special names.

Vocabulary

As stated before, angles formed by two lines and a transversal have special names.

We will use the diagram below to help us identify all of the different types of angle pairs.

Angle Pairs

CORRESPONDING ANGLES: Angles that occupy corresponding

(matching) positions.

Vocabulary

ALTERNATE INTERIOR ANGLES: Angles that lie between (on the inside of)

the two lines and are on the opposite sides of the transversal.

Vocabulary

ALTERNATE EXTERIOR ANGLES: Angles that lie outside of the two lines

and are on the opposite sides of the transversal.

Vocabulary

SAME-SIDE INTERIOR ANGLES: Angles that lie between (on the inside of) the

two lines and are on the same side of the transversal.

Vocabulary

Example (Notes)

Example (Textbook)

Example (Notes)

Example (Notes)

Example (Notes)

interiorinterior

Four Fences LOGIC PUZZLE!

Daily Puzzler

Angles and Transversals Worksheet

Cooperative Learning:

Section 3.3 AssignmentPage 123, #9-32, 36-39Due Thursday, 11/10

HOMEWORK: