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12.2.2 ASAAAS),1.,2.?, , ,𣺽ASA AAS,岻 ,ABCA/B/C/A/B/=AB A/ =A B/ =B ()A/B/C/ABC,1,2 A/B/DA/ B/ =A EB/A/ =B A/ DB/EC/,1A/B/AB,A,B,C,E,D,(ASA,1.DABEACBECD OAB=ACB=C BD=CE,B,(2),(1),(2),2,ABCDEF,A D, BE, BCEF, ABCDEF,ABCDEF, A +B +C1800, D +E +F =1800, (1800) A D, BE, CF, BE, BCEF, CF, ABC DEF ASA,(AAS,:,: B=DEF, BC=EF, :ABC DEF (1)SAS (2)ASA (3)SSS ,ACB= DEF,AB=DE,AB=DEAC=DF,2.ABABBF CDBC=CDBF DEA CEDEAB,1. ,2.,3. ,
