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

cooljackiec
Member
Registered: 2012-12-13
Posts: 160

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
lol

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,364

Re: Exterior Angles!!

Hi cooljackiec;

I am getting 90°.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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

cooljackiec
Member
Registered: 2012-12-13
Posts: 160

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
lol

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,364

Re: Exterior Angles!!

Hi;

I am getting 30°


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

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

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,337

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


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: 160

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
lol

Offline

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,364

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.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

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