(1)點(diǎn)關(guān)于點(diǎn)對(duì)稱(chēng)(中點(diǎn)坐標(biāo)公式)(2)線關(guān)于點(diǎn)對(duì)稱(chēng)(轉(zhuǎn)化為點(diǎn)關(guān)于點(diǎn)對(duì)稱(chēng),或代入法,兩條直線平行)(3)點(diǎn)關(guān)于線對(duì)稱(chēng)(點(diǎn)和對(duì)稱(chēng)點(diǎn)的連線被線垂直平分,中點(diǎn)在對(duì)稱(chēng)軸上、點(diǎn)擊下載全部:高一數(shù)學(xué)教案直線與圓復(fù)習(xí).