人教版初中數(shù)學八年級上冊期中試題廣東省廣州市

2017-2018學年東省廣市荔灣廣中學等校八年級上期中數(shù)試一選題本題10題每題2分共20分．A

B

C

DAC4A

BC

DABCADE120BADBACA40

B80

C

DADAEAABACBADCCDBEA1B4CD14ABCC90C2A90

B135

C

DPOBPOAPDOADOBEAPDBODCODABDCA110DABACBDCA90

B110

C

D10BC416ACACFDEFCDMA6B8CD12二填題本題6小題每題2分共12分．a(chǎn)3BybABCDADABC14ACBC18AB1015BCEBCDEC60CDCE16ABOAMOM3三解題本題9，至題，每；、，題分；，10．17mnBABmC18ABACCDACD19BFABDEBEACDFD20ADBCDEAC21BDABCBCPBDPMADCDMNPMPN22DBCFBADFAB23EFBDCEDEFDECABC24DABBD1CEBDMADNBDMADN22BAADABHEAC25a0yba0AH⊥BCHAH交P1aAOPOHPDMyMDDDMMS△2017-2018學年東廣市灣廣中等校年（）中學卷參考答案試題解析一選題本題10題每題2分共20分．A

B

C

DAABAC4A

BC

DBACCABCADE120BADBACA40

B80

C

DADEBACDAEBADBACCAEABCADEBAE40BAE80BADAEAABACBADCCDBESASAACDABESASBABEASACABEABEAASDADBEAAABEACDDAASA1B4CD14xx9+5x14CABCC90C2A90

B135

C

DCDE180CDE1801CED180CDECDE+CED+1801+180180D2POBPOAPDOADOBEAPDBODCODPDOEDPOAPOBPOAOAPEOBPEPDBPDPEOBPEOPDO90OPPEPDOEODCPDODPODPDODDABDCA110DABACBDCA90

B110

C

DADBDADDCBADC+CAD110ADDABBDADDCADBADCAD110BAD+C110BDCBAC360110110140Deq\o\ac(△,S)eq\o\ac(△,S)10BC416ACACFDEFCDMA6B8CD12ABCDBCADACEFCMMDABCBCADBCADAD168CEFAD+MDCDMCM+CDAD+BC8+8+210二填題本題6小題每題2分共12分．3bABab

ab2a3+25xy1212602nnn3601113ABCDEADABCADCABC2DBCADeq\o\ac(△,S)eq\o\ac(△,)eq\o\ac(△,)Seq\o\ac(△,S)eq\o\ac(△,)△14ACBC18AB1028ADABD+BCDEACADCDBC18cmAB10cmABDAB+BD+AB+CD2828cm15BCEBCDEC60CDCE

AB30ABBCDCBAEDEC60AEB30ABABEAASAB33016ABOAMOM3ABEOFCDFOFOM3OEABEOFCDOABACACDOMOECDOEOM3OFOM3ABCDEAB三解題本題9，至題，每；、，題分；，10．17mnB11ABmCC18ABACCDACD+AABE15++6075ACD1802519BFABDEBEACDFDABCDEFDBFCE++BCABBEDEBEEABCDSASSSS20ADBCDEACADBCABEDCADBCAEDABCABADBCCADDEBADCADAEEDAED21BDABCBCPBDPMADCDMNPMPNABDADBCDBABCCBDABDCBD

CBDSASCDBPPMADPNCDPMPNADB22DBCFBADFABADDA中FADDEDADCDBCBDDCDABDFBADFABDADB23EFBDCEDEFDECABCAACCCEDEBEFCCEFAFDDEFDEF2DEC90ADFCFECFEBDECFADABABCABACABBDCEBDCEAFBDECEFCEFDEEFAFDDEFDDEFDEF2DECDEF60FEC90ADFBEDCFECFEADF30BDCE2CFADBEBDABACABC6324DABBDCEAD2BAADHEAC30AHCEAHBDBHDHDHAD22DHBHAE2AHADAAHEAHAHAECEAC2AHAH+AHBHBDBHDHCEAH+DHADAD2BDMADNODMBDMBDMODMBDMADNODMBDMBDMODMEHBDDHBHCEACAB2ABAHAHBHAHDH3025a0yba0AH⊥BCHAH交P1aAOPOHPDMyMDDDMMS△aPOAOAPASAOBCOHP45HOCHAOMMNOMONPONODODMADNSeq\o\ac(△,S)eq\o\ac(△,)△eq\o\ac(△,S)eq\o\ac(△,)△SS△△△eq\o\ac(△,S)a04ab

0BDMBDMAH90++OCB90HACOBCOAPOBC

OAP2OMMHAOMHNMON390COMPON90COM

COMPONHOOHPCHA453△△ODAOB