Question

Complete the 2 column proff! I REALLY NEED HELP! i dont get this at all

Answer 1

Do you know why angle 2 = angle 4?

Answer 2

no?
i dont ge this at all

Answer 3

It looks like the proof is complete... what's missing, the justifications?

Answer 4

i dont get
a well a is given
b
d
c

Answer 5

all i have to do is tell if it is prove or given for b&d&c
idk how i do that

Answer 6

Alright, well, let's first investigate why <2 = <4.
Those are alternate exterior angles of a transversal through two lines.
If they are equal, then that means the transversed lines are parallel.

Answer 7

<4 = 110º because it is given that <4 = <2, and <2 is given as 110º
I hope that much at least makes sense to you.

Answer 8

no lol sorry

Answer 9

would b : be given?

Answer 10

b isn't given

Answer 11

so it is prove?

Answer 12

b is the transitive property

Answer 13

(b) is practically given since it follows directly from the given information, but you have to use an axiom to justify it.

Answer 14

but i think d is given and c is prove also

Answer 15

Nothing is given except what it says is given, and that is completely contained in the first line.

Answer 16

"prove" is not a justification.
You have to supply the reason why the statement is true.

Answer 17

prove is what we're trying to prove. it's going to be our last statement, and it will still have to have a justification

Answer 18

@hottiela , do you at least see why <3 +<4 = 180º?

Answer 19

why would m<4 + m<3 = 180? what makes that true?