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The probability of finding an isosceles triangle.


Best Answer BMAD, 25 March 2013 - 05:39 AM

Spoiler for did we forget?

What's triangle inequality?

Spoiler for possible triangles

 

 

Spoiler for

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12 replies to this topic

#11 BMAD

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Posted 25 March 2013 - 05:12 AM

 

 

Spoiler for did we forget?

What's triangle inequality?

Spoiler for possible triangles
Spoiler for the triangle inequality theorem

 

 

so triangles like 0,6,6 fail the triangle inequality theorem since 0+6 is not greater than 6

So, 0-angle triangles are being discriminated agianst. That's an injustice.

Still, my last post gives two different answers even for that case.

 

Spoiler for so which is it?

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#12 Prime

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Posted 25 March 2013 - 05:21 AM

 

 

 

Spoiler for did we forget?

What's triangle inequality?

Spoiler for possible triangles
Spoiler for the triangle inequality theorem

 

 

so triangles like 0,6,6 fail the triangle inequality theorem since 0+6 is not greater than 6

So, 0-angle triangles are being discriminated agianst. That's an injustice.

Still, my last post gives two different answers even for that case.

 

Spoiler for so which is it?

That depends on how "probability" was meant in the OP. The way OP was worded ("probability of forming"), it looks more like 4/10. In this context, I assume, we form a triangle by randomly picking sides for it. If OP said: "What is the probability that the triangle is isosceles," then I would be inclined to answer: 2/3.


Edited by Prime, 25 March 2013 - 05:26 AM.

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Past prime, actually.


#13 BMAD

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Posted 25 March 2013 - 05:39 AM   Best Answer

Spoiler for did we forget?

What's triangle inequality?

Spoiler for possible triangles

 

 

Spoiler for


  • 0


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