相交线平行线三角形图2“ABCD图1【考纲扫描】本单元主要考查线段、角的有关概念,如“三线八角”的有关概念;垂线、平行线的概念、性质、判定;中垂线、角平分线的概念、性质、判定;三角形的有关概念,特殊三角形的性质、判定;全等三角形的性质、判定;命题、定理、证明等概念.着重 Intersecting Lines Parallel Lines Triangle Figure 2”ABCD Figure 1 [Summary Scan] This module mainly examines concepts related to line segments and angles, such as the concept of “three lines and eight angles”; the concept, nature, and determination of vertical lines and parallel lines; Concepts, properties, and determinations of lines and angle bisectors; related concepts of triangles, the nature of special triangles, judgments; the properties of congruent triangles, judgments; propositions, theorems, proofs, etc.