Re: very difficult task, needed for now,please

Quote:

Originally Posted by

**isel** Let ABCDA'B'C'D will cube, such as in the figure. points K, L, M, N lie on the middle of edge of the AD, BC, A'B ', C'D'. Points P and Q lie on the segments KM and LN. The edge of the cube is 2 Prove that PQ> √ 2

The tasks are edited by google translator, so sorry for linguistic confusion

please prompt and detailed-response

Thank you very much for all answers

The person who will do all of the five tasks that I threw today must be a real genius

What's the rush? Where has the question come from? NB: MHF provides help, not detailed solutions.