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Mathematics 17 Online
OpenStudy (anonymous):

Please help with this , gotta pass my test):

OpenStudy (anonymous):

OpenStudy (amistre64):

any ideas?

OpenStudy (anonymous):

nope, not one /;

OpenStudy (amistre64):

well, when you have one, then we can see how correct it is.

OpenStudy (amistre64):

can you narrow it down any?

OpenStudy (anonymous):

Is he correct?

OpenStudy (anonymous):

@amistre64

OpenStudy (amistre64):

tell me why you would want to pick that one and ill tell you if your reasoning is sound.

OpenStudy (anonymous):

Because they're congruent?

OpenStudy (amistre64):

can 2 line segments be congruent (the same size) and still not be tangent to a circle?

OpenStudy (amistre64):

|dw:1405967539792:dw|

OpenStudy (anonymous):

uhh I'm not sure

OpenStudy (amistre64):

i just drew one that are congruent, but not tangent.

OpenStudy (amistre64):

so he is not correct

OpenStudy (amistre64):

is it given that they are congruent? or is that his own assumption?

OpenStudy (anonymous):

its given

OpenStudy (amistre64):

then that rules out D as the answer. so we have to choose between B and C

OpenStudy (amistre64):

his conclusion is about being tangent to the circle, do we have to know the radius to determine tangency?

OpenStudy (anonymous):

No?

OpenStudy (amistre64):

the radius will tell us nothing about tangency .. so B is pointless. he is assuming by the way the picture is drawn that they LOOK tangent and therefore must BE tangent. but nothing indicates that as a valid conclusion

OpenStudy (anonymous):

So C

OpenStudy (amistre64):

C would be the one that makes the most sense to me yes

OpenStudy (anonymous):

Thank You!

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