华东师大版九年级下册数学2017(华师版)数学九年级下册配套课件(图片版)：第27章圆

初中数学课件

灿若寒星*****整理制作27.1圆的认识第1课时圆的基本元素............................................................................................................2第2课时圆的对称性1圆的对称性............................................................................................................212垂径定理...............................................................................................................41第3课时圆周角1圆周角定理及其推论..........................................................................................592圆内接四边形的性质及圆周角定理综合应用..................................................76专题（三）圆的基本性质...............................................................................................................9527.2与圆有关的位置关系第1课时点与圆的位置关系..................................................................................................118第2课时直线与圆的位置关系..............................................................................................139第3课时切线1切线的性质定理与判定定理................................................................................1602切线长定理与三角形内切圆...............................................................................180综合练习2与圆有关的位置关系...........................................................................................................199专题（四）证明圆的切线两种辅助线的作法........................................................................................21727.3圆中的计算问题第1课时弧长和扇形面积的计算..............................................................................................234第2课时圆锥的相关计算..........................................................................................................25427.4正多边形和圆..........................................................................................................................274专题（五）与圆有关的计算................................................................................................................293第27章复习与提升...............................................................................................................................313灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若寒星灿若