What are the reasons??

Step-by-step explanation:

1. 3 and 2 are complementary because when you add them up, they give a toral of 90°.

2. As you may tell from the picture, and that they stated it in the question, angles 1 and 2 are added and they give a total of 90°.

3. If we consider that angle 3 is somewhat equal to angle 1, then the statement is true.

4. As I mentioned, if angle 1 and angle 3 are equal, then the statement is also true.

5. It was kind of proven above that angle 1 and angle two are similar, so this is true.

6. Like option 5, this is also the same thing.

I hope it helped!