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## #1 2013-03-13 12:25:52

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### Exterior Angles!!

hlep!

One interior angle of a triangle has a measure that is equal to the sum of the measures of the other two angles of the triangle. What is the measure of the smallest exterior angle of the triangle in degrees?

I see you have graph paper.
You must be plotting something

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## #2 2013-03-13 14:11:14

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Exterior Angles!!

Hi cooljackiec;

I am getting 90°.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #3 2013-03-13 14:47:09

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### Re: Exterior Angles!!

Thanks, i get it now.

What is the measure (in degrees) of the smallest interior angle of a triangle in which the exterior angle measures have the ratio 3:4:5?

I see you have graph paper.
You must be plotting something

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## #4 2013-03-13 15:20:35

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Exterior Angles!!

Hi;

I am getting 30°

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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## #5 2013-03-13 20:45:04

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,706

### Re: Exterior Angles!!

hi cooljackiec

The exterior angles of any polygon add up to 360.

3+4+5=12

360/12 = 30

so exteriors are 90:120:150

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

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## #6 2013-03-14 14:32:58

cooljackiec
Member
Registered: 2012-12-13
Posts: 185

### Re: Exterior Angles!!

thanks. i hope it was no trouble for you to solve these problems

I see you have graph paper.
You must be plotting something

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## #7 2013-03-14 15:00:35

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,389

### Re: Exterior Angles!!

Hi;

It is no trouble for me at all. I like solving problems. But I hope you are trying to solve them too.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline