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Mathematics 11 Online
OpenStudy (anonymous):

what pair of triangles can be proven congruent by sas

OpenStudy (anonymous):

I believe it's right triangles

OpenStudy (anonymous):

thats wt the question says

OpenStudy (s3a):

I think it's G, H and I?

OpenStudy (anonymous):

it would be G because It has two sides that are even with an angle between them

OpenStudy (s3a):

F seems to use the SSS axiom.

OpenStudy (s3a):

I forgot, do triangles NEED to be right-angled for these axioms?

OpenStudy (anonymous):

not always

OpenStudy (s3a):

So each of them except F seem to have the the same angle and same two sides.

OpenStudy (s3a):

If you disagree, why do you disagree?

OpenStudy (s3a):

@mathman806

OpenStudy (anonymous):

If you look closely the sas axioms need to be two equal sides that share an equal angle on two triangles. F has three equal sides so therefore it's out H has ssa so therefore that one cannot be it I only has one side and one angle given that are equal so we cannot prove that the triangle are equal so the only one remaining is G

OpenStudy (anonymous):

@s3a

OpenStudy (anonymous):

@s3a

OpenStudy (s3a):

Two secs. I'm helping multiple people at time, that's why I'm slow.

OpenStudy (s3a):

Okay so, I see how H is out in addition to F.

OpenStudy (s3a):

What's I? Isn't that SAS too?

OpenStudy (anonymous):

nope it only gives us a side and an angle to work with we need one more piece of information before we can give it an axiom

OpenStudy (s3a):

Oh! Silly me, I was assuming that the two sides that are close to each other were equal! I get it now! Thanks, @mathman806. :D @javo22, do you get that G is the answer?

OpenStudy (anonymous):

yea

OpenStudy (s3a):

Alright, good. :)

OpenStudy (anonymous):

no problem @s3a

OpenStudy (s3a):

:)

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