Angle Relationships

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on different parallel lines cut by a transversal. They are equal in measure.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines 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

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

If angle 1 and angle 5 are corresponding angles, what can be said about their measures?

Back

If angle 1 and angle 5 are corresponding angles, then their measures are equal.

Front

If angle 3 and angle 6 are alternate interior angles, what can be said about their measures?

Back

If angle 3 and angle 6 are alternate interior angles, then their measures are equal.

Front

If angle 6 and angle 7 are vertical angles, what can be said about their measures?

Back

If angle 6 and angle 7 are vertical angles, then their measures are equal.

Front

Which angles are considered supplementary? Give an example.

Back

Two angles that add up to 180 degrees are supplementary. For example, angle 70 degrees and angle 110 degrees are supplementary.

Front

Which angles are considered complementary? Give an example.

Back

Two angles that add up to 90 degrees are complementary. For example, angle 30 degrees and angle 60 degrees are complementary.