http://bookmarks.ejfox.com/content/dani-tochki-nayti-dlinu-visoti-treugolnika.html даны точки найти длину высоты треугольника Beyond Belief is now available as a free download. Its a guide written by Tamasin Knight to self help strategies used by people with unusual and compelling beliefs.  Very usueful stuff.

http://dj.ejfox.com/discus/gore-ot-uma-tema-ideya-problema.html горе от ума тема идея проблема