Question

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

Answer 1

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 $m \angle 1 + m \angle 3 = 180$ to $m \angle 1 + m \angle 6 = 180$ after replacing angle 3 with angle 6. Such a replacement can be made because angle 3 and angle 6 are the same measure.

Answer 2

Answer:

i think (B) but i am not sure