2020年湖北省宜昌市中考数学试卷推荐

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DA

BC

DDAABCDA

BC

D570037003A

B70.0310

C7.003

D7.0031224623224623222A

B

C75

D85A3B9

Ca

Da2a6590ABCD903﹣6A69B+99x+9DA

BC

D1151ABCBACA

B

C

DACOBC40A2A

B55

C60

D65分903A

B

C

Db

S

ABCabcabc7A6B6DAxAOBB30OA2AOB90BA2+

B3

C

D二.解答题（本大题共有9个小题，共75分）

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ABCDBCABDBABCE3DEABEDBE100C3030601321110

11

2xy164400AHAHOOHAHONBCNOMBCABCD1O4OHAHAHCDOAHBNMNOHQL2QL201810%2018HWQLQL2019%m%1.2018HWABCDFABADFEFDCHEF1

AEFEFHFEFHAD+DHEFHAD+DHMFHFMFEEMDCNFNADFNtanAEFABCD22C240ABCDkLym0BCABEyk0DCN5m

+3LFNNFPBMx

62019年湖北省昌中数试参考答案试题解析一.选择题（下列各小题中，只有一个选项是符合题目要求的，请在答题卡上指定的位置填涂符合要求的选项前的字母代号，每题3分，计分）66A

D66BA

BC

DADDAABCDππ33DD74234n3n4234n3nA

BC

DDD570037003A

B70.0310

C

D7.00310nn7.003a101aanA

B

C75

D858224622224622246223222145A3B9

Caa

Da2a6A2abaaaaa26B5kg100120110AB110D90120803﹣A69B+99Dx+96x+9+699DA

BC

DBCBCAA1151ABCBACA

B

C

DCABDeq\o\ac(△,Rt)BACCCDABDADC90sinD

510AA

B55

C60

D65OBOCOBC40ABOCA分903A

B

C

DBb

S

ABCabcabc711A6B6CD7c6p9S

6

ABxB30OA2AOB90BBA2+

B3

C2+

DHHHBHyHOAA2AH60AH30AHB1HOH

B

312二.解答题（本大题共有9个小题，共75分）

+

+8

+

xyyx+8xx+8

4x3DBBEEDEABEDBE100C13DBE230ABEABC15ABEBEABCABEDBEABEDBE中

ABEDBE2A100CABEDBEABC15ABEABE6530306013211107

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100%35%100%15%435%AHAHOOHAHONBCNOMBCABCDADOOHAHOAHBNMNOHOAADOCHOACOHCOOArOCreq\o\ac(△,Rt)req\o\ac(△,Rt)ABHeq\o\ac(△,Rt)ACHBMNBCAMNABCDADBC16OACOACOHC2222OACOACOHC2222AHC90OAADOAO2OCOHOAAH3OH2eq\o\ac(△,Rt)OHOCH+OCH120扇形CH1△O+扇形3OOArOHreq\o\ac(△,Rt)OH+OC3r+1rreq\o\ac(△,Rt)ABHAHBHABeq\o\ac(△,Rt)ACH1ACBMNBCABMNBMNBCA17

+

2222222222OH2QL20182018HWQLQL20192020%m小.2018HW10%20202018x23+4001600+1600+y+1600+2y320020201600+22018HWm%+2+8000t+2tt2018xx+2x+x+2x201840022018x+400y+1600+2yy32001600+232008000HW28000+2m1+80002800018%t+2ttt

%m40020208000mABCDFABADFEFDCHEF1

AEFEFHFEFHAD+DHEFHAD+DHMFHFMFEEMDCNFNADFNtanAEFAOEAFOEFAAEF45tanAEF

DFHAFDHDFAD+AEDHEFHDDGFFGEFGHGHDHDGDH+EH+MAFxAEaEFMFMN45QFMASAaAFQMAEADDQHMNAO

19OAOA

tan4512FHEFH90ABCDAD++DFH90DFHFEFHDFHAASDHDFADAF+DFAEDH3EFHDADDFADFGDGFDGEF20EHGHGH+DGDHEH+DH4MMQADQAFFHMQFMFQQFMASAQMQMxDCQMDCQM

FMFEMFMNFENHMN212222Q222222MM2M2MM2222Q222222MM2M2MMABCDA22C2436yABCDk8kLya0PABDCBk0m

+3LFNNFPBMx

k24ym+1+41m122kN4mn22m242amCFa4mam1M2am1222y9a2m4ax2236a2max2F436a22362222QQQQQQQ222222222M2MMM222QQQQQQQ222222222M2MMM20kk0360k022m4y2mm+1y4Qymyym4213y2121Q14kN4mn