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Topic: Need help writing an entire two-column proof
Replies: 4   Last Post: Nov 12, 1998 11:13 AM

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 TiGER Posts: 7 Registered: 12/6/04
Re: Need help writing an entire two-column proof
Posted: Nov 12, 1998 11:13 AM

> TiGER,
>
> You left something out of your given. The hypothesis of the theorem
> contains the word "altitude". An altitude is not just any old line from
> one vertex to a point on the opposite side. What does the fact that AC
> is an altitude say about the relationship between AC and BD?
>
> A hint for the proof: Another way of saying "AC bisects the angle BAD"
> is "angle BAC = angle CAD".
>
> By the way, the kinds of questions you are asking are things you should
>

I think I understand it now. To start off this is how it goes:
Given: Triangle BDA is isosceles with base Segment AD.
Segment AC is perpendicular to Segment BD.

To Prove: Segment AC bisects Angle BAD

That seems correct to me. The part about Angle BAC = Angle CAD would
be used in proving the theorem, I think. Well now that I know what to
prove and what is given I should be able to know how to prove it,
especially with the information LCrand2228 provided. Thank you both.

A little note on the side - I'm home schooling so a teacher isn't
available. This is the only subject that I think a teacher is NEEDED
for, at least to me. The rest I can get by fine.

Date Subject Author
11/11/98 TiGER
11/12/98 LCrand2228
11/12/98 Jon Roberts
11/12/98 Peter Ash
11/12/98 TiGER