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#1 2011-05-02 12:17:23

survival
Member
Registered: 2011-04-03
Posts: 655

Triangle to find BCD

Could someone please work this. It is driving me nuts.

triangle-1-1.jpg

The numbers to this fuzzy picture are (72-11x) degrees +(41-6x)degrees = (92 - 24x) degrees
The equation reads:
For the given triangle, find the measure of the exterior angle BCD.
The measure of angle BCD is________
A total of three answers, different lines.
Thank you.

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#2 2011-05-02 14:58:58

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Hi survival;

I can not read that at all. Do you know how to use an online whiteboard?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3 2011-05-02 15:00:25

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

hey, no, I don't know what that is. Tell me.

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#4 2011-05-02 15:02:13

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Please go here and play with it for a while. You might be able to draw your figure and save it. Then I will tell you how to upload it.

http://www.dabbleboard.com/draw


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#5 2011-05-02 15:20:57

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

Ok, i will do that. Didn't tell you i was an real artist did i? LOL

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#6 2011-05-02 15:26:50

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Are you drawing what you want?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#7 2011-05-02 15:36:24

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

it keeps turning into another type of triangle.
Tell ya what. Just solve the equation and i will figure out the last three parts. How's that?

(72 + 11x) + (41 + 6x) = (92 - 24x)

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#8 2011-05-02 15:43:02

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

That is not likely as the answer for x is - 21 / 41.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#9 2011-05-02 15:48:34

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

oh me, that is a fraction. Won't work. I have messed with this problem for days on and off. Kept clicking over to a new one, and the last part is the hold up. I am sure it's simple. I want to take geometry someday. I like this stuff.

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#10 2011-05-02 15:49:37

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

oh and the due date is tomorrow night i think. LOL

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#11 2011-05-02 15:50:38

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Go back to the dabbleboard and click freehand. That will turn off the shape recognizer. Then you will be able to draw what you like.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#12 2011-05-02 15:59:38

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

ok, will see how it goes. thank you.

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#13 2011-05-02 16:38:53

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

what do you online besides math?

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#14 2011-05-02 16:41:26

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

I am currently on 4 or 5 math forums. So that keeps me busy.

How is the drawing coming along. Have you figured the palette yet?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#15 2011-05-02 16:54:08

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

Five is a lot. wow. I have never been on any of the others. I would worry them I suppose. LOL

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#16 2011-05-02 16:56:22

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

I have one day to find out how to finance a down payment by savings accrued monthly over ten yrs. at 6 %. It is the last part of my three projects. I got perfect score on the second part, first part just so so.
There are 3 fantasy houses. Well two fantasy houses and one that a person would settle for.

Last edited by survival (2011-05-02 16:59:51)

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#17 2011-05-02 17:00:08

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Yes, I know about that question. One thing at a time. What about the drawing? Were you able to get it finished?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#18 2011-05-02 17:49:25

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

sorry, i didn't get to finish it. This is my last week and i have finals, etc.

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#19 2011-05-02 20:22:17

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

gAr has answered your finance question. He is a good man with accurate results.

I am sorry you did not finish the picture. Next time you are in here I will try show you how. Tell me how you do on your exams.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#20 2011-05-03 05:05:43

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: Triangle to find BCD

hi survival,

Just picked this up after being away for a while.

So can you now work out the angles in the triangle.  I cannot make out from your original diagram.

The exterior angle of any triangle is the sum of the two opposite angles in the triangle ( by use of angle sum = 180).

If that's not enough describe it in words like this:

In the triangle ABC the angle BAC = ..... etc.

LATER EDIT

Aarrggh.  I think I've got it.  The diagram has two internal angles (72-11x) and (41-6x) and the exterior angle opposite these and equal to 92 - 24x.

So I guess the exterior angle you are seeking is 92 - 24x where x = -3 .... = 92 + 72 = 164.

EVEN LATER EDIT

Is this the diagram below?

Bob

Last edited by Bob (2011-05-03 05:46:36)


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#21 2011-05-03 08:35:32

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

Yes, that's the one except the line is turned to the right. I did finally get the right answer after I flipped the problem and it gave me a new one. I still don't understand it but it is correct now.
Yours solution was correct too.

Last edited by survival (2011-05-03 08:36:48)

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#22 2011-05-03 08:40:31

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

bobbym wrote:

gAr has answered your finance question. He is a good man with accurate results.

I am sorry you did not finish the picture. Next time you are in here I will try show you how. Tell me how you do on your exams.

Thanks, I will let you know. I have tomorrow and a test on stats/other class test yesterday was a tough one. Too many numbers upstairs to think straight.

Last edited by survival (2011-05-03 10:07:16)

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#23 2011-05-03 13:43:22

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Triangle to find BCD

Hi survaival;

Just relax and everything will be fine. The great Bo Burton used to say."Trust is a must or your game is a bust."


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#24 2011-05-03 20:44:12

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: Triangle to find BCD

hi survival

Yes, that's the one except the line is turned to the right.

I think your picture may be 'back to front' on the post.  D and C look that way to me.

Anyway, not to worry, we got there!

Good luck with the tests.

smile

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#25 2011-05-04 14:40:40

survival
Member
Registered: 2011-04-03
Posts: 655

Re: Triangle to find BCD

Hello, Well, not many tests left. This is it nearly. LOL

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