8.8D Angle Relationships

Front

What is the name of the angle relationship formed by two intersecting lines that are opposite each other?

Back

Vertical Angles

Front

What is true about vertical angles?

Back

Vertical angles are always congruent (equal measures).

Front

What type of angle measures exactly 180 degrees?

Back

Straight Angle

Front

What type of angle measures less than 90 degrees?

Back

Acute Angle

Front

What type of angle measures exactly 90 degrees?

Back

Right Angle

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

Obtuse Angle

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of a transversal and outside the two lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

If two parallel lines are cut by a transversal, what can be said about the corresponding angles?

Back

Corresponding angles are congruent.