In the figure (attached below), H is the midpoint of EK and FJ. What reason can be used in a proof to show EF is congruent to JK? (after the triangles are proven congruent)

a.) AAS
b.) CPCTC
c.) Def. of bisects
d.) ASA

Question

In the figure (attached below), H is the midpoint of EK and FJ. What reason can be used in a proof to show EF is congruent to JK? (after the triangles are proven congruent)

a.) AAS
b.) CPCTC
c.) Def. of bisects
d.) ASA

anonymous · Answer

Here is the figure that the question refers to : )

terenzreignz · Answer

What does your heart tell you? :)

terenzreignz · Answer

The keyphrase here is *AFTER the triangles are proven congruent*
There is one of these choices that may ONLY be used as a reason when you have a pair of congruent triangles...

anonymous · Answer

My <3 says no to C for sure!! 
I'm very confused after that : (

terenzreignz · Answer

What does CPCTC mean? :3

anonymous · Answer

I'm not sure actually.... :/

terenzreignz · Answer

Sorry... internet died :D

anonymous · Answer

I'm leaning more towards the answer being D?

anonymous · Answer

Oh no don't worry!!!

terenzreignz · Answer

Well, don't :P
lol...
tsk tsk
somebody didn't read her books :3

anonymous · Answer

WOOPS!

terenzreignz · Answer

CPCTC means
"Corresponding Parts of Congruent Triangles are Congruent"

terenzreignz · Answer

As you can see, it's a mouthful, which is why CPCTC is preferred  :D

terenzreignz · Answer

So, the question says that the triangles are already proven to be congruent... so...

terenzreignz · Answer

In fact, the segments EF and JK are indeed CORRESPONDING PARTS of the pair of congruent triangles :D

terenzreignz · Answer

So you can conclude that they are congruent because of... <drum roll> 
CPCTC 

;D

anonymous · Answer

Awesome! Thank you!!!!!!!!