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November 01, 2025, 10:45:07 am
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Author Topic: Triangle inequiality?  (Read 631 times)  Share 

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Martoman

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Triangle inequiality?
« on: October 20, 2010, 12:36:18 am »
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Is it legal to ask an isosoles triangle ABC has AB = 10, AC = 4. The perimeter is?

I didn't think this was on the course, Kilbaha 09 seems to think it is.
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kenhung123

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Re: Triangle inequiality?
« Reply #1 on: October 21, 2010, 01:31:05 pm »
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Is it 18? I guess you just have to think 2 sides must be same. 1 is long and 1 is short. 2 short sides produce a long. I don't know if that is what they are trying to test?
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masonnnn

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Re: Triangle inequiality?
« Reply #2 on: October 21, 2010, 10:54:57 pm »
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i think different types of triangles would be something you'd want to know, when doing things like figuring out bearings or degrees the type of triangle it is can help you figure the answer much faster.
isoscles triangle always has two matching sides so yeah... i'd assume the answer would be 18 or 24 depending on the diagram...
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Re: Triangle inequiality?
« Reply #3 on: October 21, 2010, 11:00:10 pm »
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Quote from: masonnnn on October 21, 2010, 10:54:57 pm
i think different types of triangles would be something you'd want to know, when doing things like figuring out bearings or degrees the type of triangle it is can help you figure the answer much faster.
isoscles triangle always has two matching sides so yeah... i'd assume the answer would be 18 or 24 depending on the diagram...

But you can't have two sides of length 4 and the other of length 10. If a triangle has sides , , , then
,
,
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masonnnn

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Re: Triangle inequiality?
« Reply #4 on: October 22, 2010, 09:54:00 am »
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oops, how embarrassing...
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