摘要
本文给出一个几何定理的若干推论，这些推论揭示了定理中三个三角形之间的深刻的内在联系。
This essay presents several inferences from a geometric theorem, which reveal the internal re lations between three triangles.
关键词
三角形
等角中心
重心
等角共轭点
面积
几何定理
positive or negative equiangular centre,grauity centre,equiangular conjugate point and area of a triangle.
