1、 M) I k k s1. m ?TBX Uim5 AOB = AOBG ( )A. SSS B. SAS C. AAS D. ASA2./ oV fmp m ( )A B C D3.% 365( )A. 36 B. 60 C. 72 D. 754.BH =111 : 25HH ( )A. 13 B. 12 C. 11 D. 105./ EH =M H B60 M H B 60% H E ( )A. 1 B. 2 C. 3 D. 46.X% BH4BH95 ( )A. 22 B. 17 C. 1722 D. 267. mABCAD sBACBE sABCADBEMOCO5( )A. CEOCD
2、O B. OE = ODC. CO sACB D. OC = OD8. mABCDE AC:OA = OC;AOB = DOC;OB = OD;)AOBCOD(SAS)20. B = 45C = 38) DAB = 45 +38 = 83 D = 32) AFE = 83 +32 = 11521. Im /m22.(1) 20(2) 35(3) A = 40 HNMB = 20NMB = 12 AA = 70 HNMB = 35NMB = 12 A) NMB = 12 A / AB = AC) B = C= 12 (180 A)= 90 12 A; MN ?AB) MNB = 90) NMB
3、= 90 B= 90 (90 12 A)= 12 A:(4)5Aa H 3 A = 90 HB = C = 45) NMB = 90 45 = 12 AA = 100 HB = C = 40) NMB = 90 40 = 12 A5Aa H 3 23.(1)RtOEBRtOFC8:BAG = C;AB = CA;ABG = CAF;)ABGCAF (ASA) U mGAEDAE) AG = CF BD sABC) CAF = ABG = 22:5 CAG = 45) GAE = CAG CAF = 45 22:5 = 22:5) GAE = CAF AE ?BD) AEG = AED = 90 8:GAE = DAE;AE = AE;AEG = AED;)GAEDAE(ASA) AG = AD AG = CF) AD = CF
