Recent content by karosz

I firmly believe that it exists - I did an experiment with strings But I can't guarantee it exists

Ive tried that already but it didnt lead me to anywhere

Me too, I'll try it. But how it can be proven using elementary geometry?

Yes, only non horizontal ones. I tried the same but somehow its hard to show anything "mathematically"

:smile: mathematically. Something tells me one can construct such a pyramid, but I can't give explicit example..

I had geometry quite a while ago and I wonder if anyone has any idea how to tackle this problem: Is there any ABCDS pyramid (where ABCD is a rectangle) in which each 2 edges have different lengths and |AS|+|CS|=|BS|+|DS| Thanks