最新人教版八年級數(shù)學(xué)下學(xué)期期中考試試卷(含答案解析)

22八年級數(shù)下學(xué)期期中試試卷一選題本題小，小分，分在小給的個項(xiàng)，有項(xiàng)合題要A

B

C

DA1

B0CxD0A3B587D25A

B

C

D1A

B45

C60

D75cmABA

2DABCDAB5B12ACA5xA

+1

BD201x+yB86D4ABCD8ABACFAEEF1222n21222n2A3B5D61AAnA

B

C

Dcm二填題每題3分，15；只求寫后果4

BCECEBDAE30E?ABCDBDABCDBCPABCDAPD

ADBCEEFDCH8

++

+

6?7CDmmBCm26m8ABCD58?ABCDEAEDCFBFADABFC81

2102ABCDADCBCDABCDABCDCDBCAD3eq\o\ac(△,Rt)ACBABABDEGE45GE222222222222222222222參考答案試題解析一選題本題小，小分，分在小給的個項(xiàng)，有項(xiàng)合題要A

B

C

DA3A2

DA1

B0CxD00x

x0x1D0A3B587D2A54D1+D

5A

B

C

D

1A

B45

C60

D75x+3180xx+3xx4545BcmABA

2DBOAOB22AOBABCDAOBOACAOD120AOB60AOBAB4DAOBABCDAB5B12ACA5B15D20BBABCABCDBC160ABCABACAABCx

+11x+yAxx

B8+1+1

C6D41x+xy1222222222222221x

xxyx+﹣12210AABCD8ABACFAEEFA3B5D6CEFCFABCABCDAD8BCAEFAEBBEEF3ABAFCEFCE35eq\o\ac(△,Rt)

ABeq\o\ac(△,Rt)ABCACAB+BC+4xx6D1AAn222n2222n2A

B

C

Dcm1

B二填題每題3分，15；只求寫后果44

4

ABCDBCECEBDAE30E15ACEDAEBDCEECAEADBCADEACADBDADB30DAEBDCECECACADDAEE301515?ABCDBDACBD90??ACBDO??ABCDBCPABCDAPDABCPCDCDP75PADABCDABDAABC90BCPBPBCPBCBCPBPCABBP9030BAPBPACDPCPD75PDA901515150150ABCD460EDCH3AD4BEEFCHEHDFHABCDADBC4ABBE260DEF2DEF2ABCDCHE

CH1

eq\o\ac(△,S)

DHFH1+32

4

eq\o\ac(△,S)

△

8

++

+

23

+3

2

+

2

++2

+2

+

6??ABCDAB?ABCD2422222222222222CDABAB+1224ABCDADAB+12ABABAD+BC7CDmmBCm26mACBS

陰影

ADCDeq\o\ac(△,Rt)ADCAD24AC+CD+6ACABC+10ABACBCACBACB90

陰影

BCCD246ACB8ABCD52222BDBDO5cmAC6AO3cmBDAOBBOBD

5420cm24cm

248ABCDEAEDCFBFADABFCABDC1AAS2ABABCFABFCAFABABDF12EBCBEABEFCEAAS2ABEFCEABFCABFCABFCADBCABFC81

22

2

1102ABCDADCBCDABCDABCDCDBCAD3eq\o\ac(△,Rt)ACBABABDEGE45GE2222222222222222222ABCDADACBCDCBDBDACBDABCD22BDAD+BCAB+CDACBDAEB90AD+BC+