1/189目录封面...........................................................................................................................................2扉页...........................................................................................................................................3编写人员...................................................................................................................................4本册导引...................................................................................................................................5第五章相交线和平行线...............................................................................................................75.1相交线..............................................................................................................................8观察与猜想看图时的错觉.................................................................................................165.2平行线及其判定............................................................................................................185.3平行线的性质................................................................................................................255.4平移............................................................................................................................33复习题5..................................................................................................................................41第六章平面直角坐标系.............................................................................................................446.1平面直角坐标系............................................................................................................45阅读与思考用经纬度表示地理位置.................................................................................536.2坐标方法的简单应用....................................................................................................55数学活动....
