Flashcardizz G-3.2A: Angles and Intersecting Lines

Front

What are vertical angles?

Back

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

Front

What are corresponding angles?

Back

Corresponding angles are the angles that are in the same position at each intersection where a straight line crosses two others. They are equal when the lines are parallel.

Front

What are alternate interior angles?

Back

Alternate interior angles are the pairs of angles on opposite sides of the transversal but inside the two lines. They are equal when the lines are parallel.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are the pairs of angles on opposite sides of the transversal but outside the two lines. They are equal when the lines are parallel.

Front

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

Back

The corresponding angles are equal.

Front

If angle 4 is 50 degrees, what is the measure of angle 7 if lines are parallel?

Back

Angle 7 is also 50 degrees because they are corresponding angles.

Front

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

Back

Alternate interior angles are equal.

Front

If angle 2 is 70 degrees, what is the measure of angle 5 if lines are parallel?

Back

Angle 5 is also 70 degrees because they are alternate interior angles.

Front

What is the sum of the angles on a straight line?

Back

The sum of the angles on a straight line is 180 degrees.

Front

What is the sum of the angles around a point?

Back

The sum of the angles around a point is 360 degrees.