2023-2024

'?W:

mmillMi.?

T&Js,SSWWU

Mjsww±r^M;wmm?.

4.iW&*T^^?^-#$0o

-,M?=**?^12>M'?,$/b?3#,￡36#.a?/b?￡!±jm^J3i4bHW-?*^-ê-?SM^09.

1.AB=12cm,AB^T?6ùSL^±W—aC,B.BC=6cm,D^&ACf?^a,AD()

A.3cmB.9cmC.3cm6cmD.3cm￡§9cm

2.^g3x+6=0WW?()

A.2B.-2C.3D.-3

3.?üE^WmHi^a<JH^lPnWà^±.#?WJO>j(10±0.2)^,(10±0.3Ug,(10±0.25)^

A.0.4￡gB.0.5￡gC.0.55￡gD.0.6￡g

B.?jEW^T,

D.^W?±,frW^Wü*^?^aü?,f??wwms?.

7.^10^1H,$m

WO?20)

A.20xl04B.2x10C.2xl05D.0.2x106

8.Z.Wffi?300n,M^lOO^fc/Bt,65^^/Bt,

??w,^^fBpbWis,tmFHi,^sesx/h^M^?,w

A.100+(100+65)x=300B.100(x-l)+65x=300

C.65+(100+65)x=300D.65+(100-65)x=300

9.Snffl^-'NE^aWFBB,()

A.FFLB.Bc.aD.f?

10.'èK±?1B9M()

?E?

11.M,RtAABC^,^C=9()°,^B=30°,AB;Wù,MWXT

2

M.Nfati,ft&ifrMN,^.BCTtiD,&&AD,)

A.20B.30C.45D.60

12.3Iftx,y)

A.x=5,y=—2B.x=3,y=-3

C.x=—4,y=2D.x=~3,y=-9

-,±M^Wfr20#,??$?!)

13.ZA=60°,ZD=45%?^-W,t?Z^ZDMm￡^ACflWi￡,JHü^BAE

Sü??__________

14.M,fri^Z1=40°,Z2=100°,Z3

15.￡?5￡6X3-5x2y2+2xy+I.

16.V?5___4(?“>”,“<”“=”^).

17.W^l:.

H,4t64^.^Mfü?^0^,

18.(5#)M,aO^mAB±-a,

(1)^AB=16,AM=6MNèùK.

(2)^NM=8AB.

àMcNe

19.(5^)-

(j￡f?:-s,-3,+6,-7,+9,+8,+4,-2.

(2?A

0.254-,

20.(85?fcffl,^MN^^PQ^P^WC,S.^QPN=W°,?A^W-^r'b^,?F=1205fc,WW

OSBi$f?3tOaloo^UlrtWWM.

(I)W^Sè.

(2)

21.(105?W-S^JfflzK?,?WOmim?f?.iOéIfczKM

WO4frSS.

#r@^

2Tü/my

SHi6/n3^StblO/n3&9alJ5>47C/m3

StH10m3WWS?ti/m3

^^?KlWffl7K8m3,MW?:2X6+4X(8-6)=20Té.

(1)^P^K2^M7kl2.5//z\WWC7K&______7ü;

(2)4^>^zk20m3(4^M7K*Sü3^^),^ZK^64TC,

5>?tWX?

22.(105?M,lUM^AB±-aO^WW^OC,?Z￡(?C=80o,^-ML^=O

^(ü:ZZX>E=90°)

(1)M?,^S?H^MD(?E?ù-ià?Z)^?M^O5±,MZC(?E=.

EC

(2)M?,%OCfèt&rftZBOE,^ZGQDW?

(3)$nffl?,:m=fcfcDOWOM^OD^ZBOCttlM,TàWZBOD^ZCOE^féf?m

#W?Sé.

23.(12#)M,AABC+.AB=AC,

(D^ZBACBCD;

(2)ftlàABf?MWaèEF,EF-^ADffl?-TP^;

?OcPB>PC,

(1)^MPA,PB,PCZl'B]W^h^>

(2)^ZABC=68°,^ZBI’Cf?Ot-

1>D

[#tfrJaC??^&AB±,MAC=AB-BCTt?iBAC=6cm,AD;

ABèü?^±,?ftTOAC=AB+BCl+MtüAC=6cm,AD.

[W1M:^CMgABl,Ml,

ADCBADBC

Siü2

AB=12cm,BC=6cm,

#flUAC=AB-BC=6cm,

X$nDiagAC?,

nJWAD=—AC=3cm;

3ca￡at&ABiWI￡￡U,M2,

AB=12cm,BC=6cm,

AC=AB+BC=18cm,

XH^D?^aAC?ù^^,

^flUAD=—AC=9cm.

2

D.

2,B

[mJrJOTM:<??G6M,Jex1BP

3x+6=0,

3x=0-6,

3x=-6,

X=-2,

OB.

M-TG-7^^.

3>D

[wi?W:a?mw=(io±o.ww;

(10+0.3)-(10-0.3)=0.6kg.

D.

Mf?￡WtiEWW(10±0.2Ug,(10±0.3)fcg,(10±0.25)Agm

4%D

i&&:D.

[Ml

TSIW?,

5>D

(wiA.?a

90%90°,i&OUB.a&Bj^?riitf,

90°,am?sc.?fm^ea4é^?M-?M^,D.

?JD^?f#Bt,iOmn>90°,é?rêWMnT^?ff?g^^M^a<l￥^,?.

?:K2,

6.B

L5X1

[W]?:A,#aw,^?tKMa??iè-^lL

B,aiEWBT,

D.#Wül±,Maù?*￡W?,

[?ffltl

7.C

[Waxion?M4>l<|a|<10,n2075=200000,<6&W.n=6-l=l.

[WM]M:2075=200000=2x10'.

M:C.

M

^?a^?^>^axlO"aü^,l<|a|<10,

8,C

[#tfrl^W$ffl?^W270^^tü^BPRT.

rWMJW:M^65+(100+65)x=300.

OC.

[?]

9>B

[WMlM:

“aw“a”Mmw,

“W”“fi”

?g?*ffl”JtWffi.

B.

[affltl

10.A

[W1M:#MA.

[?]

11,B

[^Wl?JSrt^^?S^ZBAC=60°,é^a^ftfi&DAMJB,BPZDAB=ZB=30°,

[#W1￡AABC+,*.*ZB=30°,ZC=90°,

.’.ZBAC=180°-ZB-ZC=60°,

èW?MNAB

.‘.DA=DB,

.’.ZDAB=ZB=30°,

.'.ZCAD=ZBAC-ZDAB=30°,

B.

12,D

[Mtfrlt??iê3mr?!lHi2n|g,

[W]M:2x-y=3,

A,x=5B^,y=7,t&A

B,x=3ftf,y=3,iftBMW^!

C,x=-4fft,y=-ll,

D,x=-3flt,y=-9,

[￡?!

-,??4#,W20^,

13,15°j￡105°

?JSffl^tHZBAEWMBPW.

[W1??;ZA-^ZDWMS-è-,?lAC^DF^?,

(DM11WZBAE=ZBAC-ZEDF=60°-45°=15°,

(DM2ffiiF,JWZBAE=ZBAC+ZEDF=60°+45°=105°,

15°105°

14,100°.

[Mtf?l?i?^^rt??<J?5Cnr^Z3aüR^rt?^Z4,TOM?ffiW?0Z2=Z4,

(W)??:*.*Z2=100°,

.*.Z4=100°.

100°.

i?]

^SbESft^.

15,1

[WJ?:^^6x5-5xy+2xy+la<J?*l.

1.

[?]

kbBmM,

16,<.

[#tfrl??eiW^V??,MV?s^TkkS,BPnJWtH^.

[WJV1=V?6,V?5<V?6>

V?5<1-

<?

IMJ

17,2ab4-a2b2+l)

[MffiJW?^,

[WMl

jJt￡?M:2ab4-a2b2+l(^W“),

2ab4-a2b2+l(^^^Pg-).

IMI

*S?WW,a￡￡i5?:￡,

H,Mg?(**??7/h?,raaf?Oigm)

18,(1)MN=8(2)AB=16.

r^i(i)AC,sommée,^BWWMCN,W?RHI

MN;

(2)AC*DBC##J^T2MCAI2CN,MfêlgNM=MC+CN=8,BRnl^tBAB?ù^.

[WM]M:(1)W1M'N^^^AC.

ffiVXAC=2AM,CN=-BC,

2

XH^JAB=16,AM=6,

#fIUAC=2AM=\2,BC=AB-AC=4,

ffWCN=-BC=2,

2

^MN^MC+CN^6+2=S;

(2)S^JA/^BCfà^ti,

ffi^AC=2MC,BC=2CN,

f?WAB=AC+BC=2MC+2CN=2(MC+CN)=2NM=16.

[affltl

19,(1)iBcim(2)J?AftMft?iê^12^;(3)8.8#.

(2)?#￡￡￡,

(3)

[#M1M;(1)(-5)+(-3)+6+(-7)+9+8+4+(-2)=10(^X)

AitW$?10??;

(2)3WJ?AM|-5|=5^;

Jg-ft;|-5-3|=8

1-5-3+61=2^;

Igfflft:|-5-3+6-7|=9

^?L?^:1-5-3+6-7+91=0^;

1-5-3+6-7+9+81=85^;

^4s^:1-5-3+6-7+9+8+41=12-T^;

1-5-3+6-7+9+8+4-21=10^.

1?AMlW&?^12^;

(3)|-5|+|-3|+|+6|+|-7|+|+9|+|+8|+|+4|+|-2|=44(^),

44x0.2=8.8(JF),

[?]

20.(1)3é?;(2)32#

[##rl(1)èt?AftABlMN^B,30OlJ^tMft^T&iàf?-￥,fOü

AB=-PA=60m,100m,MN±'?&PN

2

Rn|;

(2)IU?A100m?&MNTC.D,BC=?>=80m,WJ

CD=2BC=160/77,CD±W^rm^?<J0tl'H].

[WMlM:(1)Sè&T:

frAB-LMNTB,

PA=120m,ZeP2V=3O°,

.-.AB=-PA=60/77,

2

RO60/T?<100/77,

?■■MN±?BPN^|njWltf,WM;

(2)100m?^MNfC,D,#1?,

ABCCD,

&Rt_ABC^,AC=100m,AB=6Qm,

CB=JAC2-AB2=80m>

HS,DB=$fàm

:.CD=2BC=]60m,

BWMJ?5/7?/S,

^=32<t?,

???

[?]

WtlTWSf?M^-30Sa<jMH?^=iàW^!UM8-^M±Hè<l^M,t?WiMMm

21,(1)48;(2)3Wm8rn3,4?MzK12m3.

(1)ftSè^Wx^i,Sè^gvl-^M^^HlBPnT;

(2)■?3^^7K*^-V,IüIJ4^^(20-X),?èB^-v

[^]M:(1)6x2+4x4+2.5x8=48(Tü),

flflU2^MZK^48Tü;

(2)^3^^7KS^A-,Iü!)4^^(20-X)

è^S:20-x>10,x<10.

?0<x<6,

2x+12+16+8(20-x-10)=64

?6<x<10,

12+4(x-6)+12+16+8(20-x-10)=64,

x=8

IMJ

22.(1)10°;(2)10°;(3)ZCOE~ZBOD=\(Y,OWb

(frflfl(1)fàfaZCOE=ZDOE-ZBOC,BP^tBZCOEfà&gc

(2)^B?Y^WMBPBI^èZCODM^;

(3)Mig^?aüWBPTOHizCOE-zBOD=IO°.

[W1(1)”ZDOE=90°,ZBOC=80°

.’.ZCOE=ZDOE-ZBOC=90°-80°=10°

:.ZCOE=io°

(2)oct?W?i?ZBOE

:.ZCOE=ZCOB=-ZBOE

2

:.ZCOD=ZDOE—ZCOE=ZDOE—ZBOC=10°

(3)M:ZCOE~ZBOD=10°

Sè:ZC