一、考点分析平行线、三角形等知识是中考的必考内容之一,这部分内容是学习其他几何知识的基础,也是几何计算和说理的基本依据.对于相交线和平行线,主要考查对顶角、垂线、点到直线的距离,平行线的判定和性质等内容.而对于三角形的考查,主要体现在三角形三边关系、三角形内角和与外角性质、两线(线段垂直平分线和角平分线)的性质与判定、等腰三角形及直角三角形的性质和判定、勾股定理及其逆定理、全等三角形及其作 First, the test center analysis Parallel lines, triangles and other knowledge is one of the necessary test content in the exam, this part of the content is to learn the basis of other geometric knowledge, but also the basic basis for geometric calculations and rational for intersecting lines and parallel lines, the main test of the top Angle, vertical line, the distance from point to line, the judgment and nature of parallel lines, etc. For the examination of triangles, it is mainly reflected in the trilateral relations of triangles, the internal angles of triangles and the properties of external corners, the two lines Bisectors), the nature and determination of isosceles triangles and right triangles, the Pythagorean theorem and its inverse theorem, the congruent triangles and their