Đề kiểm tra CLĐN Toan 9

ĐỀ THAM KHẢO KIỂM TRA CHẤT LƯỢNG ĐẦU NĂM   Câu 1   !"#$%&'()  *  Câu 2  +&,"-&. / / 012 *2 02'3 1 01 '3' 1   Câu 3 1 45,6-78  9 *03  Câu 4 / :;$<7 2 1 0= * 1 0=/ 0/ =>  Câu 5 /  ?@ABC?D9EFBG⊥CDG∈CDHBGI JD?JK9 ?"7L∆GDK~∆GCB9 *?*MBC=N6-BD=19,GDHGCHGB9 ?""DK9D?=DB 1 9 OOOOOOOOOOOOOOOOOOOOOPQOOOOOOOOOOOOOOOOOOOOOOOO  ĐÁP ÁN & BIỂU ĐIỂM MÔN TOÁN LỚP 9 CÂU L'I GIẢI ĐIỂM   () >> H> * () R H> 1 1 / / 012 =/ / 0S =/ 01 1 31 32 H1> H1> 1* 2 02'3 1 01 '3' 1  =2 0'3 0' 1  = 0'23 0' H1> H1> / /  9  =9 = H> H> /* 03 = == H> H> 2 2 2 1 0= ⇔ 1 => ⇔ =± H> H> 2* 1 0=/ 0/⇔ 0 30/ 0=⇔ 0 01= ⇔ H> H> 2 => ⇔=> ⇔⇔ H> H> > >Cm : ∆ EDF ~ ∆ EBAT 3DEK=BEC=  3GDK=GBBUVW ⇒∆GDK~∆GCB  >*Tính ED, EB, EAT DC=1 BD 1 =DG9DC⇔22=19DG⇔ DG=XH1 6- GC=1HS DC9GB=BD9BC ⇔ GB=HN >Cm : DF.DC = DA 2 T ∆DGK~∆D?CCD?HE =C =   ⇒DK9D?=DG9DC ?Y(DG9DC=DB 1 ⇒DK9D?=DB 1 H1> H1> H> H1> H1> H1> H1> H1> H1> H1> H1> PM F 16 cm 12 cm B A D C E  MA TR(N ĐỀ KIỂM TRA MÔN TOÁN LỚP 9  ?PZ[\ ]C P ^DP_+ ^D?B` a bc de & [ de & [ de & [ de & [  3PLf" 3+&," -&. 1  g 1 +&"JUe     1g / 3:;$<7 3?"= 1 1   /g 2 ?!"*A1 1  g > 3" 3h#J 3P"V$i7 6 1 1   /g ?j]:  N / . ?@ABC?D9EFBG⊥CDG∈CDHBGI JD?JK9 ?"7L∆GDK~∆GCB9 *?*MBC=N6-BD=1 9 ,GDHGCHGB9 ?""DK9D?=DB 1 9 OOOOOOOOOOOOOOOOOOOOOPQOOOOOOOOOOOOOOOOOOOOOOOO  ĐÁP. EAT DC=1 BD 1 =DG9DC⇔22=19DG⇔ DG=XH1 6- GC=1HS DC9GB=BD9BC ⇔ GB=HN >Cm : DF.DC = DA 2 T ∆DGK~∆D?CCD?HE =C =   ⇒DK9D?=DG9DC ?Y(DG9DC=DB 1 ⇒DK9D?=DB 1 H1> H1> H> H1> H1> H1> H1> H1> H1> H1> H1> PM F 16. =   ⇒DK9D?=DG9DC ?Y(DG9DC=DB 1 ⇒DK9D?=DB 1 H1> H1> H> H1> H1> H1> H1> H1> H1> H1> H1> PM F 16 cm 12 cm B A D C E  MA TR(N ĐỀ KIỂM TRA MÔN TOÁN LỚP 9  ?PZ[ ]C