怎样判别三角形的外心６１７０６２四川攀枝花十九冶二中方廷刚什么样的点才是已知三角形的外心？除了根据定义可知到三顶点距离相等的点是三角形外心，以及两边中垂线的交点是三角形的外心外，还可由圆周角定理的一种逆命题形式得到三角形外心的另一种判别法．定理１设点... How to distinguish the triangle’s outer heart 617062 Sichuan Panzhihua Nineteenth Metal Second Fang Ting Gang What kind of point is the known triangle’s heart? In addition to the definition that the point with the same distance between the three vertices is the outer center of the triangle, and the intersection point between the vertical lines on the two sides is the outer center of the triangle, another type of discriminant triangle center can be obtained from an inverse proposition of the theorem of the circumferential angle theorem. law. Theorem 1 set point...