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Angles Formed by Parallel Lines Cut by a Transversal - Dickson Copy

Line AB is parallel to Line CH. Line DE is a transversal. Move the transversal line to explore the angles formed by two parallel lines cut by a transversal change. Move point D or E to change the direction of the transversal. Keep the transversal line between points A, B, C, and H.

What do you notice about the angles when the transversal is moved? Be sure to use angle measurement notation when describing specific angles (ex: m< AFG).

As you move the transversal name a pair of angles that always has the same measurement. Be sure to use angle measurement notation when describing specific angles (ex: m< AFG).

What do you notice about the angle pairs that always have the same measurement?

Are there any angle pairs that are Complementary or Supplementary? Be sure to use angle measurement notation when describing specific angles (ex: m< AFG).