Parallel Lines Cut by a transversal

Front

What are Vertical Angles?

Back

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

Front

What are Alternate Interior Angles?

Back

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

Front

What are Corresponding Angles?

Back

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

Front

If angle 8 is 63 degrees, what is angle 2?

Back

Angle 2 is 63 degrees because angle 8 and angle 2 are alternate exterior angles.

Front

If angle 4 is x + 15 and angle 2 is 3x - 5, what is the value of x?

Back

The value of x is 10.

Front

What is the relationship between same-side interior angles?

Back

Same-side interior angles are supplementary, meaning they add up to 180 degrees.

Front

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

Back

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

Front

What is the relationship between vertical angles?

Back

Vertical angles are always equal to each other.

Front

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

Back

The alternate interior angles are equal.