Look at the figure shown below.

A student made the table shown below to prove that XY is equal to YZ.
Sample Response

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.

Question

Look at the figure shown below. 

 

A student made the table shown below to prove that XY is equal to YZ. 
Sample Response 


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.

anonymous · Answer

attachment

anonymous · Answer

attachment

campbell_st · Answer

it the fact that the measure or NYX = NYZ + XYZ (Angle Additional Postulate)

campbell_st · Answer

you need to step to show what angle XYZ is common to both triangles...

directrix · Answer

@ErickSoReal 
I agree with campbell_st

m< XYZ = m<XYZ ---> Reflexive Property of Equality

anonymous · Answer

Alrighty, Thanks alot you guys!

directrix · Answer

@ErickSoReal 

Missing Step Revision: m<NYX = m<NYZ + m<ZYX