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Mathematics 21 Online
OpenStudy (dolphin1998):

Use ΔABC below to answer the question that follows: Triangle ABC with sides BA and BC intersected by line DE. Which fact is not used to prove that ABC is similar to DBE? (5 points) Select one: a. The sum of angles A and B are supplementary to angle C. b. Segments AC and DE are parallel. c. AB is a transversal line passing AC and DE. d. Angle B is congruent to itself due to the reflexive property.

Directrix (directrix):

>>ΔABC below Please post the diagram. Thanks.

OpenStudy (anonymous):

Hey bud! the answer is d. <3

OpenStudy (dolphin1998):

1HELPMEPLZ Thanks so much

OpenStudy (anonymous):

NP! <3

OpenStudy (dolphin1998):

But how did you get that?

OpenStudy (anonymous):

its hard to explain...

OpenStudy (anonymous):

i had this question on a test before

OpenStudy (anonymous):

i hoped i helped! <3

OpenStudy (dolphin1998):

Well Thxs so much

OpenStudy (anonymous):

your welcome!

Directrix (directrix):

>>But how did you get that? I would like to know that, too. What makes this problem somewhat confusing is that line DE is not given to be parallel to line AC.

OpenStudy (dolphin1998):

OpenStudy (dolphin1998):

There is the picture of the problem too. Sorry a little bit to late. I know

Directrix (directrix):

Are you given above the diagram or wherever that line DE is parallel to line AC? I thought it might be marked on the diagram but I don't see it.

OpenStudy (dolphin1998):

I don't know. i am not good at geometry. i like the little bit of help I get

OpenStudy (dolphin1998):

I think what you said might be on it too

Directrix (directrix):

This has to be used so I don't think it is the correct option: b. Segments AC and DE are parallel. That leaves three options to check.

OpenStudy (dolphin1998):

okay I will check and see.

OpenStudy (dolphin1998):

Um. I got the answer now. I think I will close this question.

OpenStudy (dolphin1998):

I am not being mean. But I am getting kinda nervous. I have to go.

Directrix (directrix):

a. The sum of angles A and B are supplementary to angle C. is what I was thinking.

OpenStudy (dolphin1998):

It is answer A

OpenStudy (dolphin1998):

I cant but this part Directrix You've already chosen the best response. Medals 0 We're not finished. It is still thinking time.

OpenStudy (dolphin1998):

I am sorry I just dont feel like that should have been worded like that

Directrix (directrix):

Sorry for the confusion.

OpenStudy (dolphin1998):

It is all cool bro

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