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OpenStudy (anonymous):

In which line did the student make the first mistake? Line 2 Line 4 Line 5 Line 3

OpenStudy (anonymous):

OpenStudy (anonymous):

the content in line 4 is correct but she doesn't need it to prove using SAS.... the first error is then line 5. but in terms of the proof, i'd say it's line 4....

OpenStudy (anonymous):

So, you'd go with line 5?

OpenStudy (anonymous):

I mean for what this question is asking.

OpenStudy (anonymous):

for what the question is asking, she is going to prove the triangles are congruent by SAS correspondence. DE is not the correct correspondence... i'd go with 4....

OpenStudy (anonymous):

what would you say?

OpenStudy (anonymous):

I'd say 4. I'm going to submit soon. Hope it's right ! :)

OpenStudy (anonymous):

lemme get second a second opinion...

OpenStudy (anonymous):

@Callisto , please help..

OpenStudy (anonymous):

@Arnab09 , second opinion?

OpenStudy (anonymous):

I think that's best!

OpenStudy (anonymous):

line 5

OpenStudy (anonymous):

@ninhi5 , @RaphaelFilgueiras , second opinion?

OpenStudy (anonymous):

look in line five

OpenStudy (anonymous):

You don't agree it's line 4, @RaphaelFilgueiras ?

OpenStudy (anonymous):

2.83aprox 4.47

OpenStudy (anonymous):

right, that's the error.. but what about the error for the proof?

OpenStudy (anonymous):

i'd say 5 there is no way AB=DE

OpenStudy (callisto):

line 5? line 4 is correct But he/she made a mistake when comparing AB and DE

OpenStudy (anonymous):

yeah... line 5 is blatantly incorrect. but she's proving the triangles are congruent by SAS, in which case, she does not need line 4 (even though the calculations there are correct).

OpenStudy (callisto):

I see your point!!~~ line 4 :|

OpenStudy (anonymous):

well... let's go democratically then... majority rules...

OpenStudy (anonymous):

but if it is correct, the proof is wrong too,because the angle dont lie between two sides

OpenStudy (callisto):

He/she should find FD instead of DE in this case :|

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

yep..

OpenStudy (callisto):

Then, it's the problem of line 4... :|

OpenStudy (anonymous):

no line 6 the conclusion is wrong

OpenStudy (anonymous):

that was a good point..

OpenStudy (callisto):

No such an option lol

OpenStudy (anonymous):

zero for her lol

OpenStudy (anonymous):

didn't mean that...

OpenStudy (anonymous):

Line 4 is the FIRST one wrong because she should have measured DF, and not DE. so anything after it is irrelevant. So the answer it Line 4 is wrong.

OpenStudy (anonymous):

now there's no majority... i think it's split even between line 4 and line 5

OpenStudy (anonymous):

line four it's not wrong it's correct but will not give the answ

OpenStudy (anonymous):

I am so lost, guys. Hahaha.

OpenStudy (anonymous):

So, it's incorrect, but it's not TECHNICALLY incorrect?

OpenStudy (anonymous):

its wrong because you measure the wrong thing. that's like adding 4+5, when you are suppose to add 4+9. the problem is wrong which makes the conclusion wrong.

OpenStudy (anonymous):

it's incorrect for the purpose of the proof but technically it's correct... even though it's NOT needed.

OpenStudy (anonymous):

the calculations are correct, but the measurements are wrong. which makes the whole problem in line 4, wrong.

OpenStudy (anonymous):

agree ^^^

OpenStudy (anonymous):

but we got 2-3 other people against us... show 'em your muscles... that'll scare 'em to choose line 4...

OpenStudy (anonymous):

line 5 if line 4 is wrong then line 3 must be wrong

OpenStudy (anonymous):

Why must line 3 be wrong?

OpenStudy (anonymous):

line 3 is correct and is needed for SAS

OpenStudy (anonymous):

AB is not needed

OpenStudy (anonymous):

we already know that line 5 is wrong. but it asked which is FIRST one that's wrong. AB is needed to compare to DF, but she tried to compare it to DE, which is were she made her error, LINE 4.

OpenStudy (anonymous):

agree ^^^ (i'm not that vocal)

OpenStudy (anonymous):

show 'em your muscles too.

OpenStudy (anonymous):

I have a feeling this is a trick question that shouldn't be asked on 10th grade Geometry worksheets.

OpenStudy (anonymous):

the question wasn't even clear at the beginning

OpenStudy (anonymous):

Basically it really didn't matter which side chose but as long as she compared the right one. Otherwise, its irreverent. Either way, the first one is wrong is line 4.

OpenStudy (anonymous):

give us your teacher's email...

OpenStudy (anonymous):

s=1+2+... s+1=1+1+2+3+... ->(s+1/s)=1-> s+1=s->0=1

OpenStudy (anonymous):

what's that go to do with the problem?

OpenStudy (anonymous):

same thing the line 2 and three are correct but the 3 is wrong

OpenStudy (anonymous):

1 and 2 my bad

OpenStudy (anonymous):

are you confuse yet @Ashley10116 , ??? :)

OpenStudy (anonymous):

Oh, I've been confused. Haha.

OpenStudy (anonymous):

and we call ourselves tutors....

OpenStudy (anonymous):

Hahaha, it's not your fault. It's this stupid question. :(

OpenStudy (anonymous):

toss a coin.. heads 4 , tails 5 :)

OpenStudy (ajprincess):

it's line 4.

OpenStudy (callisto):

:S The democratic way fails? Line 4~~~

OpenStudy (anonymous):

yay!! 3-2

OpenStudy (anonymous):

LINE 4, DANGGONE.

OpenStudy (anonymous):

heheh....

OpenStudy (anonymous):

not democratic... i think her teacher is north korean...

OpenStudy (anonymous):

i think there should have been a question asking what to do at the beginning

OpenStudy (anonymous):

Gonna close this question, guys. Gotta ask some more. Help on those is appreciated. Thanks for the help!!

OpenStudy (anonymous):

aloha...

OpenStudy (anonymous):

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