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Geometry: 3.2 Angles Formed by Parallel Lines --Ex) 2

Identify all angles that are congruent to the given red angle. You may move A to adjust the parallel lines. When you think you have checked all of the congruent angles, click on "check answer." A green checkmark will indicate that you are correct! When you reach a correct answer, click on "new problem." Make a conjecture about the number of different angle measures that appear when two parallel lines are intersected by a transversal. *Do NOT check the given angle in the checkbox!