Google Classroom
GeoGebraGeoGebra Classroom

Parallel Lines & Related Angles Activity

In this activity, you will explore the different angle relationships formed by parallel lines cut by a transversal. In the applet below, the dashed brown line is a transversal that intersects 2 parallel lines. Take a few minutes to explore the special relationships among the various types of angle pairs formed when a transversal intersects PARALLEL LINES, by following the steps below: STEPS: 1. DRAG the green points around to change the red and/or blue angle measures that appear. 2. BE SURE TO CLICK ON EACH BOX TO DETERMINE EACH RELATIONSHIP. MAKE NOTE OF EACH RELATIONSHIP.
Use your observations to complete the statements below. Be sure to check your answer

When a transversal intersects PARALLEL LINES, all pairs of corresponding angles are

When a transversal intersects PARALLEL LINES, all pairs of alternate interior angles are

When a transversal intersects PARALLEL LINES, all pairs of alternate exterior angles are

When a transversal intersects PARALLEL LINES, all pairs of same side interior angles are

When a transversal intersects PARALLEL LINES, all pairs of same side exterior angles are

Use this image to help you answer the question below

Use this image to help you answer the question below

If angle 1 = 55 degrees, find the remaining angles