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2019春七年级数学下册期末复习3（三角形）习题课件（新版）北师大版.ppt

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期末复习3(三角形),顺次连接,钝角三角形,锐角三角形,180,中线,角平分线,高线,CD,角平分,高,大于第三边,小于第三边,完全重合,相等,相等,SAS，ASA，AAS，,SSS,C,D,B,A,A,B,A,D,7,40,20,60,100,钝角,35,ABC,CDA,

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