Parallel Lines Cut by a transversal

Front

What is the angle relationship when two parallel lines are cut by a transversal and the angles are on opposite sides of the transversal and inside the parallel lines?

Back

Alternate Interior Angles

Front

If m∠D = 116°, what is m∠D if it is an Alternate Interior Angle with another angle?

Back

∠D = 64°

Front

What is the angle relationship when two parallel lines are cut by a transversal and the angles are on opposite sides of the transversal and outside the parallel lines?

Back

Alternate Exterior Angles

Front

What is the angle relationship when two parallel lines are cut by a transversal and the angles are on the same side of the transversal and inside the parallel lines?

Back

Consecutive Interior Angles

Front

What is the angle relationship when two parallel lines are cut by a transversal and the angles are on the same side of the transversal and outside the parallel lines?

Back

Consecutive Exterior Angles

Front

What is the angle relationship when two lines intersect and form two pairs of opposite angles?

Back

Vertical Angles

Front

If m∠C = 64°, what is m∠C if it is a Vertical Angle with another angle?

Back

∠C = 116°

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

If two angles are corresponding angles, what can be said about their measures when the lines are parallel?

Back

They are equal.