Question

Look at the figure shown below.
A student made the table shown below to prove that XY is equal to YZ.
Statements Justifications
NY = MY Given
m∡MYX = m∡NYZ Given
m∡XNY = m∡ZMY Given
Missing Proof.
m∡MYZ = m∡MYX + m∡XYZ Angle Addition Postulate
m∡MYZ = m∡NYZ + m∡XYZ Substitution
m∡NYX = m∡MYZ Transitive Property
triangleXYN ≅ triangleZYM ASA postulate
XY = ZY CPCTC
A. Provide the missing statement and justification in the proof.
B. Using complete sentences, explain why the proof would not work without the missing step.

Answer 1

@AwesomeB

Answer 2

Help?

Answer 3

@Jamierox4ev3r

Answer 4

ugh i did these 3 years ago -.- idk if i remember but i will do my best

Answer 5

Okay.(:

Answer 6

wait do we know where the missing proof is supposed to go

Answer 7

In the blank spot in between the two things.

Answer 8

ah okay after all the Given stuff omg i will try not to make my brain hurt :/

Answer 9

Okay.(:

Answer 10

hmmmmm idk i have a few guesses but idk if they are right for sure so i better not confuse you. Tag someone who has a rlly high smart score, maybe they can help you
:/ i never liked geometry

Answer 11

I don't know anyone with a high score. O_o you do it.

Answer 12

@ivettef365

Answer 13

Ivette?

Answer 14

I'm thinking

Answer 15

Okay(:

Answer 16

could it be angle XYZ = angle XYZ by Reflexive Property

but that is my guess

Answer 17

It is reflexive property but why would the proof not work without it?

Answer 18

I said this, "Normally, a proof needs Reflexive Property in order to work. Without it, the proof is not correct. Reflexive property states the an angle equals the same angle. "

Answer 19

I want to add more to it but I don't know what to put.

Answer 20

@campbell_st Could you help too?

Answer 21

I like @ivettef365 reflexve property. the only other is m NYM = 180 a straight angle

Answer 22

Yeah, but I have to write in complete sentences why the proof would not work without the missing statement and justification.