Based on the evidence presented by Bleaug, this is updated as follows:
Key words: Geometry, Unusual geometry, Math, Physics, Chemistry, High school, Geometry Olympiads, Free Geometry, Euclidean Geometry, Calculus, Geometric Construction. Oh yes, going-nowhere discussions, haikus, and poems too.
Friday, March 23, 2012
Fox 350
Labels:
Area of a Triangle,
areas,
Counterexample,
proof,
Quadrilateral
Monday, March 12, 2012
Fox 349
This is just one step forward to the general case. Should not be very hard unless the claim is wrong :)
Friday, March 9, 2012
Fox 348
We'll return back to Sampy's question later. But, for a change let's see a simple one - or at least it looks simple. We're looking for the shortest proof of the claim below. May be purely-geometric one? Or is the claim wrong? Let us know...
Tuesday, February 21, 2012
Fox 347
Below is the general case submitted by Roland Sampy.
There seems to be at least 2 expressions for r.
We had a solution, but it looked a little clumsy. Moreover, we lost it :)
There seems to be at least 2 expressions for r.
We had a solution, but it looked a little clumsy. Moreover, we lost it :)
So, do help us to recover... Oh yes, do enjoy as well...
Thursday, January 12, 2012
Fox 346
Wooow... This has been quite long time, huh? Life makes people busy (although that is not the exact excuse.)
Is everybody alive? What have been up to? Bleaug? Newzad? Polar Fox ?? ...
The following fox is a simplified version submitted by Roland Sampy. We should be able to ask a general version later. You mean next year??? Who knows hopefully earlier. Here you are...
Oh, by the way the answer was not confirmed yet. So, the claim could be wrong.
A happy new year to everybody.
Labels:
circle,
Inscribed Circle,
proof,
semi-circle,
Tangent
Tuesday, July 19, 2011
Fox 9
This was an old one. I think a solution was found but then lost. Yeah, it sounds stupid :)
Here, we received a claim that a solution was found again. It should not be terribly hard. Enjoy...
Here, we received a claim that a solution was found again. It should not be terribly hard. Enjoy...
Thursday, July 14, 2011
Fox 345
Labels:
circle,
Circle Covering,
Coordinate System,
Unit circle
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