文[1]得到的一个新定理如下：定理如图图ABC各角顶点与对边三等分点的连线中，相邻两条连线分别交于P、Q、R，则面PQRABC，且相似比为1：5．仿文[1]的证明方法，此新定理可以推广为：命题如图ABC各角顶点与对边。等分点的连线中，相邻两条连线分别交于P、Q、R，则面PQRABC，且 A new theorem obtained by [1] is as follows: the theorem is like the graph ABC between the vertices of each corner and the three equally divided points of the opposite side, and the adjacent two lines are respectively intersected by P, Q, R, then the surface PQRABC, And the similarity ratio is 1:5. Proof method of [1], the new theorem can be generalized as follows: propositions such as ABC vertices and opposite sides. In the connection of the equipotential points, the adjacent two lines are respectively intersected by P, Q, and R, and the surface is PQRABC.