Question

I don't understand how to do this... Can some one please explain it to me?

Answer 1

What you are doing for 2, 3, and 5 is naming the postulates or theorems that the proof is showing. For number 4. you have to figure out the step in between SH ~ ST and SHD ~ STD, in other words you have to show how they got from the first step to the next step.

Answer 2

I know that... haha.... but how do you figure that out??

Answer 3

2. Given perpendicular means right angle.

Answer 4

I can't help with 2 and 3 b/c I am not good at those and I don't want to give you the wrong answer. But for number four they are using the reflexive property which means its going to be SHD ~ STD and then for number five you would just write simplify.