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Angles associated with parallel and non-parallel lines

Author:
Cari Reddick, Rosalie83
Topic:
Angles
Investigate the angles associated with parallel and non-parallel lines. Move lines AB, CD or EF or GH.

What do you notice?

Name 2 angles that are congruent and why they are congruent.

Name 2 different angles that are congruent and why they are congruent.

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