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#26 2013-06-02 06:13:34

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,655

Re: altituds

I am looking at it now. If you change AB the distance varies.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#27 2013-06-02 06:21:44

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,532

Re: altituds

In my diagram and if Y is the point on AC where XY is perpendicular to AC then

AYX and AMX are congruent (SAA) so the size of AB is irrelevant.

Bob


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

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#28 2013-06-02 06:21:51

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: altituds

It does. But it stays the same as MX.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#29 2013-06-02 06:26:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,655

Re: altituds

MX changes too because it is a perpendicular bisector of AB. If AB lengthens MX will change too.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#30 2013-06-02 06:28:45

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,532

Re: altituds

Here's my diagram.

MX is given as 9, so it cannot change.

Bob

View Image: cool.gif

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

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#31 2013-06-02 06:30:09

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: altituds

Hi bobbym

I do not think you understand me. The distance from X to AC is always the same as MX. Bob has a nice proof up there.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#32 2013-06-02 06:34:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,655

Re: altituds

I am sorry, your comment in post #21 confused me. I already solved this in post#20. I thought you had found something wrong with that answer, and got mixed up.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#33 2013-06-02 06:35:24

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: altituds

No, no. I just stated that we do not need the length of AB.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#34 2013-06-02 06:40:16

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,655

Re: altituds

Because of the fact that Flux does not tell you when a post has been put just prior to yours, I was posting for your posts and did not see any of his!

My apologies to Bob.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#35 2013-06-02 07:55:06

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,532

Re: altituds

No apology necessary.  I'm happy to have been able to provide a quick solution.  For once my pencil and paper worked more quickly than my software.  smile

Bob


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

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