山东省济宁市2019中考数学试题真题

2019年山东济宁市中考学试卷一选题本题小题每题分，.在每小给的个项，有一符题要A

BCD431254A65

B60

C55

D75A

B

C

DABCDA3B

C0.6GG5GG5005GG45GxAB

2222222222C45DA

BC

D6+5A4By32Dyx4B0eq\o\ac(△,A)eq\o\ac(△,)yADkA9BCD18101

1

12324312100222012324312100222012aaa+a+aAB7.5D二填题本题小，小分共15分。xx+1213Pxyy14eq\o\ac(△,Rt)ABCOABDOAEBC15y+cymx+n13ax+n的三解题本题小，分，166sin60

++|

2018|17

t0.5t1t1.5t2t

m

20%15%25%10%1n2

322.5218MNAOB1PMN2

11121121112112119yx12BCyx20CD

E2CACBDHOEF1AE2DH21yfxxx1xfxfxfx2xfxfxfxxx00x

12121212121212121212fxf

0xx0x0xffxxx0fxf

+0+12

+1f3f42x

+

3221ADECDAEAEFBCG1CE2NAGDGDMNDAMAMxMDMNx

年山省宁中数试参考答案试题解析一选题本题小题每题分，.在每小给的个项，有一符题要A

BCD4051B31254A65

B60

C55

D75b552a4553554

A

B

C

DABCDAABCDAABCCDDB

A3B

C0.6A

3B

CD

60.6DGG5GG5005GG45GxAC

45

BD

45GG454Gx

A

222222222222222222A

BC

DCBDB6+5A4By32Dyx4yx+5343412yx+5x﹣44D

B0eq\o\ac(△,A)eq\o\ac(△,)yADkA9BCD18HyHAOBAASHDHyAOBAHBABOA90BAOABHBABAAOBAASOABHOBHA20B6OA2BH2AHOBOH4A6

1232431210012341210021212324312100123412100212BDADDyDk15101

1

a2aa+a+aAB7.5D22+2aaa2++10031a+++a33

A二填题本题小，小分共15分。xx+x2xx+20

122122x1x12218092

14018013Pxyy12yxy+4yxyx11+4y3y2

阴影阴影14eq\o\ac(△,Rt)ABCABDOAEBCBCABADADOAODAeq\o\ac(△,Rt)ABCBC

AB

2

BCOCODBDBCADBD2

eq\o\ac(△,Rt)ABCsin

30ODODAODA60

tanAOD1

22222222222215y+cymx+n13ax+n的x3x

yaxy+nA13+p+nyc+p3xy+y+bxax+nx3xx3x三解题本题小，分，

166sin60

++|

2018|

17t0.5t1t1.5t2t

m

20%15%25%10%1n

30%25011.5322.52t0.5

2320%203n

30%220+6+5+12+4+3502526251.51t5032.5218MNAOB1PMN2

2和NAOB219yx12BCyx21C30/1011/

10kmh/h2301.5h10kmC1.515yy+byy1x20CD

E2CACBDHOEF1AE2DHAFE902tanODB

HFxDFxDFHF

AFCFODxD

222222OEAOE2CAOE90EAO2BODOBODBODBCHFxDFxDHx9xDFHFFDHDFHCFDCFCFxOFOF

222111211211212222111211211212121212+xx10OA102021yfxxx1xfxfxfx2xfxfxfxxx00xfxf

0xx0x0xffxxx0fx

+0

11212111112121111212f

+12

+1f3

f

2x

+3213x

+0

42443x

+03xfxx0x0x0fxfx

+xx

+0221ADECDAEAEFBCG1CE

2222222NAGDGDMNDAMAMxMDMNxADAF10DEEFECDEEFxECF2ADMGMNMNMDMNDNMHDG1ADBCABCD890ADAFDEECDEEFxeq\o\ac(△,Rt)

6CFeq\o\ac(△,Rt)x+4x

EC2ADCGCGBG+CG16eq\o\ac(