Question

which of these people is correct with there proof? picture in attachments

Answer 1

Is there a figure, to which these statements refer? Without a drawing or a figure of sort, you can't really tell who is right

Answer 2

Ok, it is about vertically opposite angles, I see
consider the figure

The proof is about the pairs of opposite angles,
\[\angle2,\angle4\]
and
\[\angle1,\angle3\]
Being equal
This property is knows as vertically opposite angles are equal or congruent and has a fairly simple proof.
Now let's see what
Kelly and Daniel are doing
Let's look at Daniel first
Hm, his proof looks good
But there's a big problem with Kelly,
she's trying to prove a theorem using the theorem ITSELF, how can you prove something if it's not given you, and if it's given to you, what's there to prove?

Answer 3

What Kelly is doing is something like you are given
\[x=3\]
Now prove that
\[x=3\]

Answer 4

I hope that makes sense

Answer 5

Sorry I mean, how can you prove something if it's already GIVEN to you, and if it's already given, what is there to prove?

Answer 6

If it is given it will be a fact or statement that is excepted as true and thank you for you last couple of reply's I was reading through them and I think it clicked

Answer 7

you're very welcome