论文部分内容阅读
双直角三角形是指一条直角边重合,另一条直角边共线的两个直角三角形.双直角三角形问题作为初中数学中考的一个热点,一直受到各地命题者的青睐.解这类问题的基本零路是:运用“遇斜化直”的数学思想,即通过作辅
The double right-angled triangle refers to two right-angled triangles with a right-angled edge coincident, and another right-angled edge co-linear. The double right-angled triangle problem is a hot spot in the junior high school mathematics test and has been favored by local propositioners. The basic solution to this type of problem is solved. Yes: Use the mathematical thinking of “straightening in a straight line”, ie