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

Spoiler for did we forget?What's triangle inequality?

Spoiler for possible triangles

Go to the full postSpoiler for

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account. As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends. Of course, you can also enjoy our collection of amazing optical illusions and cool math games. If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top. If you have a website, we would appreciate a little link to BrainDen. Thanks and enjoy the Den :-) |

Guest Message by DevFuse

Started by BMAD, Mar 23 2013 06:22 AM

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

Spoiler for did we forget?What's triangle inequality?

Spoiler for possible triangles

Go to the full postSpoiler for

12 replies to this topic

Posted 23 March 2013 - 06:22 AM

Using integer side lengths, what is the probability of forming an isosceles triangle if the perimeter is 12?

Posted 23 March 2013 - 05:35 PM

Spoiler for

Posted 23 March 2013 - 08:36 PM

Spoiler for I get

Past prime, actually.

Posted 24 March 2013 - 03:55 AM

I agree with Prime provided the OP is worded,

What fraction of integer-sided triangles whose perimeter is 12 are isosceles?

What fraction of integer-sided triangles whose perimeter is 12 are isosceles?

*Vidi vici veni.*

Posted 24 March 2013 - 07:42 PM

Spoiler for breaking stick with unit notch

Posted 25 March 2013 - 01:31 AM

Depending on random selection process, there is another possibility.

Spoiler for another answer

Past prime, actually.

Posted 25 March 2013 - 02:29 AM

Spoiler for did we forget?

Posted 25 March 2013 - 04:33 AM

Spoiler for did we forget?

What's triangle inequality?

Spoiler for possible triangles

**Edited by Prime, 25 March 2013 - 04:36 AM.**

Past prime, actually.

Posted 25 March 2013 - 04:40 AM

Spoiler for did we forget?What's triangle inequality?

Spoiler for possible triangles

Spoiler for the triangle inequality theorem

**Edited by BMAD, 25 March 2013 - 04:46 AM.**

Posted 25 March 2013 - 05:09 AM

Spoiler for did we forget?What's triangle inequality?

Spoiler for possible trianglesSpoiler for the triangle inequality theorem

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

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

**Edited by Prime, 25 March 2013 - 05:12 AM.**

Past prime, actually.

0 members, 0 guests, 0 anonymous users