State the postulate or theorem that can be used to prove the triangles congruent. If you cannot prove the triangles congruent, select not enough information.

- anonymous

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- schrodinger

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- anonymous

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- anonymous

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- anonymous

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- anonymous

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- butterflydreamer

here, take a look at this table :) It's super helpful!
http://prntscr.com/7q9tj6

- anonymous

omg thank you can you tell me if im right?

- butterflydreamer

you're welcomeeee :D!!
And sure, type up what you think the answers are and i'll tell you if you need to fix any :)

- anonymous

omg okay thanks!

- anonymous

ok for the first one i got SAS

- anonymous

one i got ASA

- anonymous

i mean second oops

- anonymous

thrid one i got sas

- anonymous

and fourth one i got ASA

- anonymous

are those correct??

- butterflydreamer

1st one - SAS (correct)
2nd one- ASA (correct)
3rd one - SAS (incorrect)
4th one - ASA (incorrect)
good try :)
just re-attempt the 3rd and 4th one

- anonymous

ok thanks! give me a sec haha

- butterflydreamer

okey dokeeyyyy

- anonymous

is the 3rd one sss?

- butterflydreamer

yess :D!

- anonymous

and 4th asa?

- anonymous

yay!!!!!!!

- butterflydreamer

4th one.. you said ASA the first time and that was incorrect :)
first look at the triangle and tell me if it has 2 sides and 1 angle that match or 1 side and 2 angles that match

- anonymous

wait oops i meant to say sas

- butterflydreamer

yyeeees :D excellent :)

- anonymous

omg yay thanks! i have another question can you help me on it?

- butterflydreamer

you're welcomee :)
sure, i can try to help though my geometry isn't very strong xD

- anonymous

Use the diagram below. Tell why each statement is true.
∠A ≅ ∠ C
∠AXB ≅ ∠CXD
∆ABX ≅ ∆CDX

- anonymous

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- butterflydreamer

oh dear.. I can do this question, but i'm not good (horrible) at explaining it xD
So i'm sorry! But if you close this question and post it as a new post, someone else will SURELY help you step by step :))

- anonymous

hmmm idk you you try to explain it because if i see the answer maybe i can understand why that is the answer?

- butterflydreamer

okay i can try but idk how well this will end LOL.
So firstly, we want to state why angle A is CONGRUENT (equal) to angle C.
Hint: we are given that \[AB // CD\] , so why would

- anonymous

is it the reflexive property??

- butterflydreamer

not quiteee. Do you know about alternate angles, corresponding angles and co-interior angles? :)

- anonymous

somewhat haha

- butterflydreamer

okay, well between two parallel lines:
these angles will be EQUAL because they are alternate angles.
|dw:1436365370736:dw|

- anonymous

if lines are paraellel then alt interior angles are congruent?

- butterflydreamer

yeeeeeeeeeeeeeees! :D

- anonymous

omg yay!!!!!!

- anonymous

ok now what about the other two questions??

- butterflydreamer

what would be your reasoning for why these two angles are equal? :)
|dw:1436365662993:dw|

- anonymous

SAS?

- butterflydreamer

not quite xD We're just looking at the angle :)
remember vertically opposite angles are equal?

- anonymous

oooo so vertical angles are congruent?

- butterflydreamer

Note: when 2 lines CROSS, the angles opposite each other (vertically opposite angles) are equal (congruent)

- butterflydreamer

you have to say "vertically opposite angles" :)

- anonymous

o haha so vertically opposite angles are congruent??

- butterflydreamer

yeepp

- butterflydreamer

so to sum it ALL UP,
We have this:
|dw:1436366018587:dw|

- butterflydreamer

^this is for the last part btw :)

- anonymous

ASA?

- butterflydreamer

YYEEEES :D :D!

- anonymous

OMG THANK YOU

- anonymous

are you good at proofs?

- butterflydreamer

phew... you're welcomeeee :)
i'm not very good at them xD

- anonymous

ahh no worries hah thanks again

- butterflydreamer

no problemo ^_^

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