摘要
本文将直角三角形的射影定理与Pythagoras s定理推广到直角四面体中 。
This paper extends the projection theorem and Pythagorass theorem of right angle triangle to right angle tetrahedron, deduces two important conclusions.
出处
《惠州学院学报》
2002年第3期20-21,共2页
Journal of Huizhou University