Question

Use the following problem to answer the question below:
Given: m∠ABE = m∠CBD
Prove: m∠ABD = m∠CBE

http://puu.sh/1oNEP (<- click link for image)

What is the reason for B?

A. Substitution Property
B. Angle Addition Postulate
C. Addition Property of Equaltiy
D. Given

Answer 1

Because angle addition postulate is just what it says...lol! It is the addition of two angles together. :)

Answer 2

Thank you :)

Answer 3

You r welcome, anything else?

Answer 4

Umm.. Do you know what the reason for D would be? (Same answer options)

Answer 5

Ok, hold a sec, I will check it out. :)

Answer 6

Ty :D

Answer 7

Because, as you put earlier, you are trying to prove the given, this proof is probably going backwards, because normally the given is at the top. :)

Answer 8

Is it understandable?

Answer 9

Hmm.. Not really :\

Answer 10

When they put the given, you put that at the top, because that is what they reveal to you. So then you have to prove the thing that says, Prove. :)

Answer 11

Ohh no, I'm not sure how to explain this without it being confusing LOL, when I asked "What is the reason for B?" I meant B in the picture, not B in the answer options :P Same with D

Answer 12

Yeah, lol! it is Angle addition Postulate for b. :)

Answer 13

Oh so D would just be Given? o.o

Answer 14

Sorry about that, have to check d. :)

Answer 15

Can you put some terms for that?

Answer 16

It'll come to me, once I hear some terms. :)

Answer 17

What do you mean by terms? (Sorry, this is my son's homework so I have absolutely no idea, so rusty on my maths :P )

Answer 18

Hmm...well, like angle Addition Postulate, stuff like that, I don't remember all the postulates, but I will if you can ask your son the terms, any notes he has, it would be a term for equal angles, that's all I remeberr. :)

Answer 19

A. Given
B. Angle Addition Property of Equality
C. Substition Property
D. Subtraction Property of Equality
Does that help at all? Those were the answer choices for D

Answer 20

Ok, let me see. :)

Answer 21

It would be C, because if you switch them around, you can still set them equal to each other, because they are exactly the same,. :)

Answer 22

Thank you so much :D I appreciate your help!

Answer 23

You r welcome! Anything else?

Answer 24

Do you know what the reason for A & C would be?

Answer 25

LOL, any answer choices?

Answer 26

A is obviously Given, lol! :)

Answer 27

For A:
A. Angle Addition Postulate
B. Subtraction Property of Equality
C. Substitution Property
D. Given

For C:
A. Substitution Property
B. Subtraction Property of Equality
C. Given
D. Angle Addition Postulate

Answer 28

C, lol, would most likely b B. Because you can if you were to subtract both answers, you will get the same answer. :) So they would be equal. :)

Answer 29

Thank you very much:) That was the last question :D

Answer 30

LOL! You r welcome! :) Good luck! Your son will get used to proofs after a while. :)