2/17 - ANGLE RELATIONSHIPS VOCABULARY PRACTICE

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines cross. They are always congruent (equal measures).

Front

In a pair of parallel lines cut by a transversal, what are alternate interior angles?

Back

Alternate interior angles are the pairs of angles that lie between the two lines and on opposite sides of the transversal.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal in measure).

Front

What type of angles are formed when two parallel lines are cut by a transversal?

Back

Corresponding angles, alternate interior angles, alternate exterior angles, and consecutive interior angles.

Front

What is the measure of a right angle?

Back

90 degrees

Front

What is the sum of the angles in a triangle?

Back

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

Front

What are alternate exterior angles?

Back

Alternate exterior angles are the pairs of angles that lie outside the two lines and on opposite sides of the transversal.

Front

If angle 4 is 50 degrees, what is the measure of angle 8 if they are alternate interior angles?

Back

Angle 8 is also 50 degrees because alternate interior angles are congruent.

Front

What is the definition of a straight angle?

Back

A straight angle measures exactly 180 degrees.