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#1 2013-08-15 13:52:08

helpmewithproofs
Member
Registered: 2013-08-15
Posts: 7

Proof Help

Can someone please help me do a 2 column proof similar to the one below with the given Triangle?

Photo of Triangle: http://i1039.photobucket.com/albums/a477/tricnetworks/IMG_11451.jpg

2 column proof as an example: http://www.wyzant.com/Images/Help/theorem_pf3.gif

Last edited by helpmewithproofs (2013-08-19 02:56:26)

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#2 2013-08-15 14:43:58

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 21,742
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Re: Proof Help

In ΔDEG and ΔFEG
1. Angle DEG = Angle FEG [EG bisects DEF]
2. Angle EDG = Angle EFG
3. EG is common.

Thus, ΔDEG congruent to ΔFEG ⇒DG = FG ⇒ΔDFG is isosceeles


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
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#3 2013-08-15 15:04:37

helpmewithproofs
Member
Registered: 2013-08-15
Posts: 7

Re: Proof Help

How would you put that in a 2 Colum proof with statements - reasons ?
Thanks for the help

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#4 2013-08-15 15:52:18

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 21,742
Website

Re: Proof Help

What is a a two column proof?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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#5 2013-08-15 16:11:53

helpmewithproofs
Member
Registered: 2013-08-15
Posts: 7

Re: Proof Help

It is a normal proof but has 2 columns you have to fill out.  One column is the statements and one column is the reasons

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#6 2013-08-15 21:44:51

bob bundy
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Registered: 2010-06-20
Posts: 7,052

Re: Proof Help

hi helpmewithproofs

Welcome to the forum.

How would you put that in a 2 Colum proof with statements - reasons ?

post 2 has most of what you need.

You could throw in the word 'given' for statements that were given in the problem, and the congruency reason is angle/angle/side.

So the only other things you need are a piece of paper, a ruler to draw the columns and a pencil smile

Good luck with it.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#7 2013-08-19 02:57:26

helpmewithproofs
Member
Registered: 2013-08-15
Posts: 7

Re: Proof Help

Thank your for your responses, but putting it into the 2 column format is still not making sense to me.  Can someone please clarify that portion?

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#8 2013-08-19 03:28:55

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,052

Re: Proof Help

Answered in other thread.

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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