八年级数学上册第十二章全等三角形12.2三角形全等的判定第1课时三角形全等的判定(SSS)同步训练(新版)新人教版.doc

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1、112.2三角形全等的判定第 1课时 三角形全等的判定(SSS)学生用书 P251如图 12-2-6所示,在 ABC中, AB AC, BE CE,则由“SSS”可以判定( )图 12-2-6A ABD ACD B BDE CDEC ABE ACE D以上都不正确2如图 12-2-7,点 D, E在线段 BC上, AB AC, AD AE, BE CD,要判定 ABDACE,较为快捷的判定依据是_ _图 12-2-732016福州一个平分角的仪器如图 12-2-8所示,其中 AB AD, BC DC. 求证: BAC DAC.图 12-2-824如图 12-2-9,四边形 ABCD中, AB

2、CD, CB AD.求证: ABC CDA.图 12-2-95如图 12-2-10, AB AC, AE AD, BD CE,求证: AEB ADC.图 12-2-106如图 12-2-11,点 B, E, C, F在同一直线上, AB DE, AC DF, BE CF,求证:AC DF.图 12-2-1137如图 12-2-12所示, AB AE, BC ED, CF DF, AC AD.图 12-2-12求证: BAF EAF.参考答案【知识管理】2相等【归类探究】例 1 略 例 2 (1)略 (2) AB DE, AC DF.理由略【当堂测评】1D 2.SSS 3.36 4. AB DC【分层作业】41C 2.SSS 3.略 4.略 5.略 6.略 7.略

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