2020-2021學年山東省聊城市東昌府區(qū)文軒中學八年級(上)期中數(shù)學試卷 解析版

學年山省聊城市昌府區(qū)文中學八年（上）期中數(shù)學試卷一選題共11小題A

B

C

ABCeq\o\ac(△,A)eq\o\ac(△,)'BBBOAACC

BBOOC'MNDBCxyAC

B20DACDA60B25DOEA85A

B95B

CC

DD1/19

MNCDCDA90

B95

C

DAC

BDA3A0

2xB3CD0xB2CD010DABCA2B4CD8BDAMEMNDMADAMADDM2/19

2222A

B

C

D二填題共3?。?2DEDEABC

13DBCCDF1BACABCBDE14PAOBPO8QROAOB上三解題共小題）15a1016aaa3/19

211112111117m41218ABCBEABCFFFDBC12AFC3EF19eq\o\ac(△,Rt)90ABDAD116AB122AD520BCDEAFBFBAB1240D8021ABCB1yeq\o\ac(△,A)eq\o\ac(△,)C2eq\o\ac(△,A)eq\o\ac(△,)B4/19

5/19

學年山省聊城市昌府區(qū)文中學八年（上）期中數(shù)學試卷參考答案試題解析一選題共11小題A

B

C

BCDCABCeq\o\ac(△,A)eq\o\ac(△,)'BBBOAACCBBOOC'MNDBCABCeq\o\ac(△,A)eq\o\ac(△,)BCCAABOCBCDD6/19

D

xyAC

B20Dxy10x10

ACDA60B25DOEA85

B95

C

DDOEBCA6025BDOC85DOE110CA

B

C

D7/19

xy4

MNCDCDA90

B95

C

DDCBDDCBDDBC25+2550CDA50ACB50DAC

BD8/19

ABBCD

CDA3

2xB3CD本

2x1x+1x3x3xA0

0xB2CD0x+2xx2x20x2C10DABCA2B4CD84AC9/19

DDACABD4BDAMEMNDMADAMADDMA

B

C

DACABCBACBDCEABD

ADAEACAMACEADAM10/

ACCNE90CAECAEBADBACADMADAMD二填題共小題12DEDEABC4DEACDEDDACEABDED413DBCCDFAD2BAC24BDE11/

ACFBDEABDACFBDEABDABECAFACFBDEABD121+ABECAF2FCACAFBAEFCAABECAFCAFASA+SS△△△24CD324ACFBDEABD614PAOBPO8QROAOB上812/

222222222222POAMRQ在PRRQ+QPMNPOAMNONMNMNOAPRPQRMNOPNOBMONAOB260MONOP88三解題共小題）15a10xx0a+1xx10aa10aa+113/

2222222222116aaaa1aa10aa+1a1

17m412先062618ABCBEABCFFFDBC12AFC3EF14/

BAF2FBA3BEBFDxBFABCEBCBAFBECSASBEC2AFCFBAGBEBCBFCBFBCFBECGAFBCFFDBCFGBAFDFG15/

FCFAACF3ABBECDCD2BGBAAGx+2eq\o\ac(△,Rt)eq\o\ac(△,Rt)BFGHLBDBGBCBD+CDBEx419eq\o\ac(△,Rt)90ABDAD116AB122AD5DEABDBDADC++16BD+DCAC+ABC21ADBDABDBADCAD2CADxDABCAD+16/

DAB+ABDxADCDABDEADBDADC16AD+ACBD+CD++16AB+16+1228282BDBADABD2x2DABABD5xC90ABD+BACx+5xxDAB+ABDx+520BCDEAFBFBAB1240D80ACDEACFBD217/

111111EAA+BCACBDEACFBDSASEF2ECADA40E180806021ABCB1yeq\o\ac(△,A)eq\o\ac(△,)C2