3.1/3.2 - Angle Relationships

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that are formed when two lines intersect. The sum of the angles in a linear pair is always 180 degrees.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

Define corresponding angles.

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal. They are equal in measure.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines on opposite sides of a transversal. They are equal in measure.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside two parallel lines on opposite sides of a transversal. They are equal in measure.

Front

Define consecutive interior angles.

Back

Consecutive interior angles are pairs of angles that lie between two parallel lines on the same side of a transversal. They are supplementary, meaning their measures add up to 180 degrees.

Front

What is the relationship between a transversal and parallel lines?

Back

A transversal is a line that intersects two or more lines at different points. When it intersects parallel lines, it creates various angle relationships such as corresponding, alternate interior, and alternate exterior angles.

Front

What is the sum of the angles in a linear pair?

Back

The sum of the angles in a linear pair is always 180 degrees.

Front

How do you identify vertical angles in an intersection?

Back

Vertical angles are formed by two intersecting lines and are located opposite each other. They can be identified as angles that share the same vertex but do not share a common side.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

When two parallel lines are cut by a transversal, alternate interior angles are equal.