Question

Two Column Proofs I Really Need Help!

Answer 1

Use ASA to prove that the two smaller triangles are congruent first.

Answer 2

For Question 19 use SAS

Answer 3

do you need more instructions?

Answer 4

It Has to Be in a Form Like This
Statement: Reason:

Answer 5

Do you need guidance of the whole two-column concept or just this particular question?

Answer 6

I have no idea How to do them I always get them Wrong

Answer 7

If you will excuse me for 2 minutes, because my modem is malfunctioning and I have to reset it. Sorry for any inconvenience caused.

Answer 8

ok

Answer 9

i'm back now, how do you want me to teach you?

Answer 10

I could:
(a) Give you all the steps
(b) Guide you to the answer
(c) Let you show me your attempt and I'll correct you

Answer 11

You choose what is best to you, in your opinion. (Everybody is different)

Answer 12

Could you tell me the answer and then tell me how you got them?

Answer 13

OK

Answer 14

Here is my attempt:
\[\begin{array}{c|c}
\mbox{Statements}&\mbox{Reason}\\\hline
\angle BDA\cong\angle BDC&\overline{BD}\perp\overline{AC}\\\hline
\overline{BD}\cong\overline{BD}&\mbox{equality is symmetric}\\\hline
\angle DBA\cong\angle DBC&\overline{BD}\mbox{ bisects }\angle ABC\\\hline
\Delta BDA\cong\Delta BDC&\mbox{ASA}\\\hline
\angle A\cong\angle C&\mbox{corr }\angle s
\end{array}\]

Answer 15

@Barbbiee

Answer 16

Is this 18?

Answer 17

you know, typing this out takes a lot of time, so you'll have to be super patient xD

yes, it's q18

Answer 18

So I used ASA, first statement A, second statement S, third statement A.

Answer 19

Once I proved that the two triangles are congruent, the result immediately follows at the fifth statement.

Answer 20

what does Cor Mean ? corresponding ? && The Raeson For the first one what is the thing in between BD And AC

Answer 21

that thing \(\perp\) is perpendicular

Answer 22

I don't know what you guys call it in USA, but in here I call it corresponding angles

Answer 23

Yeah that's what we call it

Answer 24

so you get it?

Answer 25

yes I understand

Answer 26

I just dnt know how to write it out. can you help me with number 19 too? @kc_kennylau

Answer 27

\[\begin{array}{c|c}
Statement&Reason\\\hline
\overline{CA}\cong\overline{EA}&given\\\hline
\angle CAB\cong\angle EAD&\mbox{vert opp }\angle s\\\hline
\overline{AB}\cong\overline{AD}&given\\\hline
\Delta ABC\cong\Delta ADE&SAS
\end{array}\]

Answer 28

I know that you don't call it vert opp <s