2018_2019学年八年级数学上册第十二章全等三角形12.1全等三角形课时练习新版新人教版20190111360.doc

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112.1 全等三角形1.与图 1 所示图形全等的图形是( )2.将图 2 所示绕 A 点顺时针转 180所得到的图形是( )A DC图2 BA3. ABCFED写出图中相等的线段,相等的角图 中线段 除相等外,还有什么关系吗?请与同伴交流并写出来.4.如图,矩形 ABCD 沿 AM折叠,使 D 点落在 BC 上的 N 点处,如果 AD=4cm,DM=3cm, DAM=39,则 AN=_cm, NM=_cm, NAB=_ _.答案:1、DDCBA图1CBADEFMDANB C22、C3、AB=EF, AC=DE ,BC=DF,BD=FC, ABC=DFE , C=D , A=E4、4cm 3cm 12

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