2021-2022学年辽宁省锦州市中考联考数学试题含解析及点睛

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ḄwxyrḄ2Ḅz{|ᑮF~ENOHḄZ+.sὃkl>Ḅឋ4.20ஹ(1)4,⊡ᐰWZ:.(2)102072.(3):.ூ
᪆௃(1)᪷SᳫḄᦪ6ᡠᓰḄᑖ8ᑡVWXᓽEḄᦪEᳫḄᦪᯠH⊡ᐰWZᓽ5(2)ᑖCE᣸ᳫஹᳫḄᑖ8ᓽᑮmஹnḄᵨᳫḄᦪᡠᓰḄᑖ8u360஺ᓽ5(3)DE᪛ZᯠH᪷Sᭆ᳛UVᑡVWXᓽ.ூ
௃(1)(1)Ḅᦪ012+30%=40()ᳫḄᦪ040-4-12-16=40-32=8()⊡ᐰWZ᝞Zᡠ5

16ZজZঝ4(2)V-xl00%=10%,40Q—xl00%=20%,40Azn=10,஻=20,⊤“ᳫ”Ḅᡧ+Ḅᙊ¤
(20%X360°=72°ᦑ,ᫀ0প40;ফ102072
3᪷S⚪§DE᪛Z᝞¨©ªᵱ1ᵱ2ᵱ3᝕XTX/N23᝕ᵱ1ᵱ3᝕®1¯2᝕ᵱ1ᵱ2ᵱ3°ᐳᨵ12³´µា·(1ᵱ1᝕Ḅ´µᨵ6³•••P¸ា·(1ᵱ1᝕¹=f=º12221ஹ
1MN»¼½_¾᪍ÀÁÂ.ᳮᵫ:᪆52ÄWᑜÆᡂÈ⚗º`◤⌕25ᜩ.ூ
᪆௃⚪ᑖ᪆1⌕MN(ᔲ½_Ī¾᪍ÀÁÂsÎ(CᑮMNḄÏÐ.⌕᪀⌼
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+
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2᪷S⚪§ᑡz`.⚪᪆1᝞Z_C\CHJ_ABH,ÓCH=x,ᵫÔpᨵNEAC=45஺NFBC=60஺CHÕ!|NCAH=45஺,NCBA=30°,ᙠRTZkACHaAH=CH=x,ᙠRTAHBCatanNHBC=——xCHHB==>/3=73x,tan30°TVAH+HB=AB


x+Gx=600XH220¸Ø¹200¸Ø¹.fMN»¼½_¾᪍ÀÁÂ.

17(2)ÜÝcᑜ×ᡂß⚗à)◤⌕yᜩᑣ6▭×ᡂà)◤⌕y-5᪷a⚪Ï}----=(l+25%)x—,7}y=25s}y=25Ḅ᪷.>-5y|}Ýcᑜ×ᡂß⚗à)◤⌕25ᜩ.1422ஹ(1)S=-3x1+14x,—104ᡂóòx=5=14-15=9<10ᡂóAAB5m(3)S=14x-3x'=-3(x-4)1+48,••ᜋḄᨬᜧMᵨ10ô0õ4-3ö10,:.—

18••Ùw=7"ᨵᨬᜧ☢ÝḄÞᙇ.ூ௃fàᦪᙠá▭ãaḄFᵨ(j⚪Ḅὃ᪷S⚪äåEḄᩩç|Eᔠ〉ḄêᐵìᑡEz`(⚪Ḅᐵí.23ஹ(1)60°(2):᪆5(3)FḄMᙶ᪗ᑖC0Mi(2,-2)ஹM2(-2,-2)ஹNL(-2,2î)ஹM(2,).4ூ
᪆௃(1)ᵫNOAC=60஺᧕ð&OAC(*
+ᓽNAOC=60஺.(2)ᵫ(1)ḄñòpOA=AC,ótOA=AC=AP,ᓽOPwḄaOPḄ°ôᵫtðAOCP(
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+õNOCP=90஺ᵫtᑨöEPC6஺OḄ÷øᐵì.(3)t⚪Fὃ⇋ú³´µûAMAOஹAOACḄ☢ÝrüýþÿḄ
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௃(1)VOA=OC,ZOAC=60°,/.OAC"#$%&ᦑNAOC=60஺.(2)ᵫ(1)+AC=OA,,+PA=OA,ᓽOA=PA=AC.•.AC=-OP,-OCP".%$%&/NOCP=90஺20OC"஺OḄ12ᦑPC3஺OḄ45ᐵ6"ᑗ.(3)᝞9:ᨵ$;<=জ?CᐵxḄᑣᔠMḄ⌕BMḄᙶ᪗EM,(2,-2^/3);60üx4_4ýFGMAḄHE:180-3-ঝ?CᐵḄKᔠMḄ⌕BMḄᙶ᪗EM2(-2,-273);

19120
x4_8FGMAḄHE:180-Tঞ?CᐵyḄKᔠMḄ⌕BMḄᙶ᪗EM(-2,273);3240஻x4_167rMGMAḄHE:180ߟটOCஹMPᔠBCᔠMḄ⌕BM4(2,273)!300
x4_20%MGMAḄHE:180ߟQR+OSAMAO=SACAOBSMᡠUVḄGHEWXYZḄMᙶ᪗ᑖ\EMi(2,-26)ஹ3333M(-2,-273)ஹM(-2,26)ஹM(2,26).234ூ_௃a⚪ὃdeᑗfḄᑨhGHḄijklmnᑖopqrsḄtᵨv⌕w.24ஹ(1)axyᐳ{de200|}~ὅ:(2)⊡ᐰḄᩩ&i9᪆A;kᡠZḄᙊ%E108(3)ᵨAB;kḄ}~ὅᐳᨵ928|.ூ᪆௃ᑖ᪆(1)᪷BḄᦪᡠᓰḄᑖax{dḄ}~ὅḄᦪ:(2)᪷i9Ḅᦪ⌱ADḄᦪ0ᩩ&i9⊡ᐙ᦮ᙠᡧ&i9A;kᡠZḄᙊ%Ḅᦪ:(3)᪷i9ḄᦪijᵨAB;kḄ}~ὅᐳᨵ¡¢|.£(1)564-28%=200,ᓽaxyᐳ{de200|}~ὅ:(2)DkḄᨵ200x20%=40()AkḄᨵ200-56-44-40=60()⊡ᐰḄᩩ&i9᝞9ᡠ¥OO8O6O4O2COᙠᡧ&i9A;kᡠZḄᙊ%E360°x—-=108°,

20(3)1600x^^=928(|)200¦ᵨAB;kḄ}~ὅᐳᨵ928|._a⚪ὃdᡧ&i9ஹᩩ&i9ஹᵨ᪵a¨i©ª¦a⚪Ḅᐵ«"¬⚪nᑭᵨᦪ&¯ᔠḄrs¦.