如图所示,直线PA交圆O于A,E两点,PA垂线DC切圆O于C,过点A作圆O的直径AB.1.求证;AC平分∠DAB;2.若DC=2,求圆O的直径
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 00:11:24
![如图所示,直线PA交圆O于A,E两点,PA垂线DC切圆O于C,过点A作圆O的直径AB.1.求证;AC平分∠DAB;2.若DC=2,求圆O的直径](/uploads/image/z/14158504-64-4.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E7%9B%B4%E7%BA%BFPA%E4%BA%A4%E5%9C%86O%E4%BA%8EA%2CE%E4%B8%A4%E7%82%B9%2CPA%E5%9E%82%E7%BA%BFDC%E5%88%87%E5%9C%86O%E4%BA%8EC%2C%E8%BF%87%E7%82%B9A%E4%BD%9C%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84AB.1.%E6%B1%82%E8%AF%81%EF%BC%9BAC%E5%B9%B3%E5%88%86%E2%88%A0DAB%3B2.%E8%8B%A5DC%3D2%2C%E6%B1%82%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84)
xTnP~iqQ3Jr{/C|} C`l2\ٜndAd?JW QW[Z!FMLW--KSkhs=Zu$\Bу2x ZeB0&3{k AkHӢ-#L=;!A,
YDZs1EK*f3TkZ*C֨}iBߵ-SMz7DxE (ݪk^
A.{F( {i1+*-)2\v%ׄ狷ɽ<)UBbFzQ|,;`@~wVv^o]w9R<v&M%,{z}OXj
=~@?GGvKjc'Y<+M`=u
bӁ) f'`w4 suWmݦviїK.iC?2pO{Z>|1 {ܾ~pAăFwo:|kE*bU0#d%P