与三角形的“心”(垂心、外心、重心、内心 )有关的解析几何综合题是一类极富思考性和挑战性 ,具有相当深度和难度的重要题型 ,倍受各级各类考试命题者的青睐 ,频频出现在各级各类考试卷中 ,常处于“压轴题”的地位 ,充当“把关题”的重要角色 .下面精选出九道典型例题并予以分 Analytic geometry synthesis questions related to the “heart” of the triangle (vertex, heart, center of gravity, inner heart) are a series of highly reflective and challenging questions with considerable depth and difficulty. The favor of propositions, frequently appear in all kinds of examination papers at various levels, often in the “end-point title” status, as an important role in the “regarding questions”. The following selected nine typical examples and give points