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总复习阶段,应有针对性地、适量地研究一些不同类型的几何综合题的解法.几何综合题大多是圆与平行线、三角形、四边形、相似三角形、锐角三角函数等知识的综合运用.近几年来,全国各地中考题中,一题多问、开放性题目是几何综合题常见类型.图1例1如图1,已知正△ABC内接于⊙O,P是
In the general review stage, there should be a targeted and appropriate study of the solution to some different types of geometric synthesis problems. The geometric synthesis problems are mostly integrated applications of knowledge such as circles and parallel lines, triangles, quadrilaterals, similar triangles, and acute angle trigonometric functions. In the past few years, in the examination questions all over the country, one question was asked more frequently, and the open question was a common type of geometric comprehensive question. Figure 1 Example 1 As shown in Figure 1, it is known that positive △ ABC is inscribed in ⊙O, P is