2020-2021学年湖南省长沙市雨花区广益实验中学七年级(下)期末数学试卷

学年湖省长沙市花区广益验中学七级（下）期末数学试一单题共10小题，题3分共30分）A1

0.21B2

0.20202C3D42021141178A104

B72.06106

C107

D0.72061083是2+3A90

B180

C

DA2

B3

C45

D643yA4B43D381000ABC8DABAC

BDABCD1

A

BC

D150A20

B

C22

D23102GADACEFABHABDAD②CH2++90A5

B4

C3

D二填题本题6个小，小分共分）52212

13ABCBAC50ACE14

15x2a3a16A5.6D.7三解题本题个小，17、1819题每分，2021题每分第、题随分第24、25题每题分，分17

+|202118ab2b22a2bb119

2037AOBAOBAOAOB1OOAOBD2AOA3D4DOBAOB

1①②SAS③AAS④ASA2OAOB21

mn2340003022

POMPOM950800A2AB10023OyA20B0ABAB1C2BCPCS

BOM

24yLxy+abxyxyxyxy1+3Lm2Lx+aLL122n+13LxyxL2Lxkx18k25①ACABACBDBBDBD

t

1QP1ACPBPQ2PCQ3CABDBA70AB97AB2BDxDACPBPQxt

参考答案一单题共10小题，题3分共30分）A1

0.21B2

0.20202C3D40.20202C

2021141178A104

B72.06106

C107

D0.72061087206720600007.206107

C3是2+3A90

B180

C

D21131+2+

A2

B3

C45

D616254

54

C43yA4B43D343y81000ABC8DA1000BC.8DDABAC

BDABDABCD1A

B

CAAB1+2ABABCD

D121BCABCD12CDBADCDAACBDD150A20

B

C22

D23x240x15012x2020

102GADACEFABHABDAD②CH2++90A5

B4

C3

D①ABD②CFHCHACHAH③④ADAFCACFBF⑤1CFAD1+1+FBC+FCB90二填题本题6个小，小分共分）115P5212

x3x313ABCBAC50ACE110

ACEBACBACABC60ACE+6011014636015x2a3axa52a216A5.6D.710815%60

B

108三解题本题个小，17、1819题每分，2021题每分第、题随分第24、25题每题分，分17

+|20213+41318ab2

222a2

a1b3

+ab2

a2

ab2

b3ab+4ab2

4

2aba11119

x4xxx4122037AOBAOBAOAOB1OOAOBD2AOA3D4DOBAOB

1

①①②SAS③AAS④ASA2OAOB1①①②SAS③AAS④ASA①2eq\o\ac(△,C)eq\o\ac(△,)ODCODeq\o\ac(△,C)eq\o\ac(△,)DCODAB211

202523400030

16030%200m%2004010100%20%%100%25%2525230405040340003022950800A2AB100

POMPOM1B

A2A100

50m535323OyA20B0ABAB1C2BCPCS

BOM

1xD90AOBAOBCDA+DCABACBAD+90BADACD

POMPOMBOMBOMPOMBOMPOMPOMBOMBOMPOMBOMCDAAOBCDAAASAOCDDA0BOA4CD2DA4ODODCDCC222xSSSeq\o\ac(△,)S24yLxy+abxyxyxyxy

1xyx+3yLLmm2Lx+aLL122n+13LxyxL2Lxkx18k1L3L2m2+32L3abL2naa

n36L2+c2x183+2kxxk3+2k3+23k03kkkx0kkx6k3225①ACABACBDBBDBD

t

1QP1ACPBPQ2PCQ3②CABDBA70AB97AB2