Which of the
following statements are true? Select all that apply.

3 Answers: B, C, D

Essentially, everything but choice A is true.

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Explanation:

Let's go through the answer choices one by one

Choice A is false because angles 3 and 2 are not alternate interior angles. Instead, they are vertical angles.Choice B is true because angle 1 and angle 3 form a straight line. Choice C is true. Alternate interior angles are angles that are inside the parallel lines, and are on alternating sides of the transversal cut. The other pair of alternate interior angles is angle 4 and angle 5.Choice D is true. We go from to after replacing angle 3 with angle 6. Such a replacement can be made because angle 3 and angle 6 are the same measure.