Unit 2 Angle Pairs

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 a 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 cut by 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 and on opposite sides of a transversal. They are equal in measure.

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

How do you identify alternate interior angles in a diagram?

Back

Look for angles that are located between the two parallel lines and on opposite sides of the transversal.

Front

How do you identify corresponding angles in a diagram?

Back

Look for angles that are in the same relative position at each intersection of the transversal with the parallel lines.

Front

How do you identify alternate exterior angles in a diagram?

Back

Look for angles that are located outside the two parallel lines and on opposite sides of the transversal.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always equal to each other.

Front

If angle 1 is 155 degrees, what is the measure of angle 4 if they are vertical angles?

Back

Angle 4 is also 155 degrees because vertical angles are equal.

Front

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

Back

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