2021-2022学年辽宁省东港地区市级名校中考数学四模试卷含解析及点睛

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16ᡈ(-1-V14»0)ᡈ(2+W0)ᡈ(2-Æ0)ᡈ(0,0).ூ᪆௃(1)ÇADcᐭ./k2,VW./ÈrsRᦪxÉ7ὶËÇBDcᐭᓽ+./̳RᦪxÉ.(2)ÍPA=PB,./P.ÍAP=AB,.P.ÍBP=BA,.P.᪷%ᙶ᪗Åή¯ᓽ+.ூ<௃পbA(-1,2)cᐭÐÑ8ᑮk2=2...ÈrsRᦪḄ᪆#ᱏ--.X2VB(m,-1)ᙠᙠ---Am=2,Xᵫ⚪?Ó8qÓÔÌ1,...̳RᦪḄ᪆#y=-x+L(2)ÕᩩÖḄPDḄᙶ᪗#(-1+JJ7,0)ᡈ(-1-V14»0)ᡈ(2+ᔊ,0)ᡈ(2-J×())ᡈ(0,0).ூDE௃F⚪ὃJ̳RᦪឋÙ0ÈrsRᦪḄ0ឋÙ⚪ḄᐵÚ)ᦪ´ᑖPÛÜÝ.21ஹ273+1ூ᪆௃᪷%ᱯß(ḄP(Rᦪ6ஹàᢣᦪᗩḄឋÙஹnᢣᦪãḄឋÙNäå6ḄឋÙᑖæᓄèᔜ⚗a7᪷%ᦪḄS¯´ᑣ®¯ᓽ+..ூ<௃ê=2x-1+3+G—2=73-1+3+73-1=2ë+1.ூDE௃F⚪G⌕ὃJKᦪS¯᪷%ᱯß(ḄP(Rᦪ6ஹàᢣᦪãḄឋÙஹnᢣᦪìḄឋÙNäå6ḄឋÙᓄèᔜᦪ⚪ᐵ.22ஹ(1)40(2)72(3)1.ூ᪆௃(1)ᵨᨬîpAïDḄðᦪ◀òᡠᓰḄôᑖrᓽ+8ᑮõöJḄ÷øùðᦪ¼

17(2)ᐜ[\ᨬ]^D_,Ḅ`ᦪa⊡ᐰᩩde[fᯠhᵨ360஺j9ᨬ]^D_,Ḅ`ᦪᡠᓰḄmᑖNᓽᑮᡧde[f⊤r“ᨬ]^_,D”ḄᡧdᙊuvḄwᦪI(3)ᵨ800j9᪵.ᨬ]^A_,Ḅ`ᦪᡠᓰḄmᑖNᓽ.ூ௃(1)yz0Ḅ{|}`ᦪ8+20%=40(`)I(2)ᨬ]^D_,Ḅ`ᦪ40-8-14-4-6=8(`)⊡ᐰᩩde[f!úûüD?ᔣᩩQý®Qᡧde[f⊤r“ᨬ]^_,D”ḄᡧdᙊuvḄwᦪ;'360஺=72஺I4014(3)800x=l,ᡠ9[“ᨬ]^_,B"Ḅ{|`ᦪ1`.4023ஹ(1)᪆I(2)BC=2CD,ᳮᵫ᪆.ூ᪆௃ᑖ᪆!(1)ᑭᵨdḄឋᓽᑨFAE^^CDE,ᓽ*lJCD=FA,a᪷CD஻AF,ᓽdACDFAdI(2)ᐜᑨCDEA5ῪvvdCD=DE,a᪷EAADḄ,AD=2CD,AD=BC,ᓽ*JBC=2CD.!(1)•••dABCDAdAB஻CD,.♦.NFAE=NCDE,AADḄ,AE=DE,,.•NFEA=NCED,.,.FAE^ACDE,.CD=FA,XVCD#AF,•••dACDFAdI

18(2)BC=2CD.!YCFᑖNBCD,.,.ZDCE=45°,VZCDE=90°,/.CDEA5Ὺvvd.*.CD=DE,•••EAADḄ,.,.AD=2CD,VAD=BC,.*.BC=2CD.,-!.⚪⌕ὃ01dḄឋ9:dḄᑨឋ⌕¡5ஹv¡5ὃ⇋£⌕Ḅஹஹvஹᑖ¤¥¦2§dḄ¨ᡈ¨vḄª¥«¬dAd®ᑮ«¯°Ḅ.1.——-------24ஹ(1)஺஻2—I+(2)J஻+l—1.+W+1ூ᪆௃(1)᪷⚪³«|=----=V2-1,a,=F~~m2¶|=U_=22m,1+V2V2+V3V3+2%=ߟᓃ==422,…ᵫ»¼n§56!a=\------=\Jn+\-4nnr2+J5>Jn+y/n+l(2)£½2§56ᓄ¿ᓽÀ'ᫀ.ூ௃!(1)•.•¼1§56!4=ÂÃ=¶21,¼2§56!4=ÄÅ=m2⊈¼3§56!-G,¼4§56!4=/^=Ç22,

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