2022年浙江省杭州市富阳区中考二模 数学 试卷（学生版+解析版）

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19ᵫ⚪¨(vG2GBᐵxU9A072AB=2/480=90஺AB=AQ,2.ZABQ=ZAQB=45O,BQ^=AB2+AQ^=2AB2=2(2^+2)2=8(^+1)2,22ZQBN=ZAB0-ZABQ=15O,22᝞3,³vRfZ\ABCZC=90°,ZBAC=3Q°,BC=\,.AB=2BC^2,AC=஻B2-BC?=8,´CAµG஺¶4£)=AB=2,AZD=ZABD=-ZBAC=15°,CD=AC+AO=6+2,8cle·tan\5°=tanD==-7=----=2—73,CDV3+2᝞2,ᙠ¦¸QNBN஺2BN=NABO-NAB஺2=15°©0,N=x,ᑣBN=----=Xr-=(2+¹)X,tanNQ?BN2-J3ᵫº»¼ᳮBQ2=QN2+BN2=f+(2+6)2/,2...8(¾+1)2=/+(2+3)2*2,x—2,.QூN=2,,2>G—1,QN>QiT,2...G஺ᑮU9BDḄḄᨬᜧ¡32.

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Wᦪa145^x<1501504V155155^x<1601604V1651654V170170^x<175ூTᫀ௃(1*ᵬஹᐳᨵ᝕500;(2*X"᪆<(3*ᡧ?£AᑖᡠCDḄᡧ?ᙊFGḄHᦪZ72.ூ"᪆௃ூᑖ᪆௃(1*ᵨDAᑖḄ0ᦪ◀^ᐸᓰaᓽc+dᵬஹḄ᝕0ᦪ;(2*ᑖe+dCஹEAᑖḄ0ᦪᓽc⊡ᐰ89<(3*ᐜ+dEAᑖḄᓰaj^360஺ᓽc+".ூl"௃(1*13+26%=50(0*ᦑᵬஹᐳᨵ᝕500<(2*CAᑖ'155-160'50x28%=14(0*EAᑖ165-170'50-2-6-14-13-5=100⊡ᐰ89᝞'(3)10-50x100%=20%360°x0.2=72°

22ᦑᡧ?EAᑖᡠCDḄᡧ?ᙊFGḄHᦪZ721ூvw௃x⚪y⌕ὃ|}|ḄDᵨ"⚪Ḅᐵ᪷⚪+d}|Ḅ0ᦪ.19.ᙠজNA£1B=NA£CঝN8AD=NC4£,ঞA£1=AEᩩ⌱ᐸ⊡ᐙᙠ☢Ḅ%⚪ᡂ%⚪Ḅ"T.᝞ᙠ(ABCAB=AC,.(⌱জঝঞḄ⚗*+'BD=CE.('᝞⌱.ᩩᑖeTᢥ"Tᑖ*ூTᫀ௃ঞX"᪆<ᡈজX"᪆<ঝX"᪆'ூ"᪆௃ூᑖ᪆௃c⌱ঞᡈজᡈঝ᪷ᐰG?ḄᑨῪG?Ḅᑨឋ¢"Tᓽc.ூl"௃"'⌱ঞ'᝞£vA¤vVAB=ACAD=AE^:.BH=CH,DH=EH.,BD=BH—DHCE=CH-EH,BD=CE.⌱জ'•••AB=ACZB=ZC.

23,/ZADB=ZAEC,.AADB^AAECBD-CE.⌱ঝ'•k=2x3=6,

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25(2)hi0E,|EQᓽJ_A£XH,ak}LGAF£//N~GAH=EF=4,EH=AF=S,ᙠRfAEHD0,DH=AD—AH=6,EH=8,ᵫᳮ!uDE=10,AAOE+ῪGuᑮNZME=NZ)E4.ᵫ஺4=OE,uᑮNOAE=/OE4,T!u/OEQ=90஺uijOELOG,uᑮi.ூ1&௃/A8N஺஺ḄOPZAEB=90°.•..}LGABC஺+EFG.AB=CD=AD=10,ZBAD=90°,•/EF±ABNEFA=NEFB=90°.,/ZEAF+ZAEF=90°ZBEF+ZAEF=90°,•ZEAF=ZBEF/.AAEFsCERF,.AFEF''~EF~~BF'pAF=x,BF=AB-AF=\Q-x,,x4,,T=-----,410-x&ux—2ᡈ8,•/AF>BF,x=8,ᓽAF=8.

26ூ2&௃kb᝞.2,hi0E,|EQJ_A஺XH,ᑣNA”E=/O”E=90஺,.2,/NAHE=NBAH=ZAF£=90°,}LGAEE”N~GAH=£F=4E"=AE=8.ᙠRtdEHD0,DH=AD—AH=6,EH=8,DE=^DH2+EH-=10-•AD=DE...lAOE+ῪGZDAE^ZDEA.'OA=OE,...lAOE+ῪGZOAE^ZOEA,.ZOED=ZOEA+ZAED=ZOAE+ZDAE=ZDAO=90°.OE1DG,•OE+஺஺ḄP•••0G+o஺ḄᑗZ.ூ௃⚪ὃEFGḄឋ?ஹᑗZḄᑨᳮஹGḄᑨឋ?ஹᳮஹ~GḄᑨឋ?ஹῪGḄᑨឋ?〉ḄZ+&⚪Ḅᐵ9.22.¡%ᦪy=(x-o)(x-a+2),ᐸ¢஺N£ᦪ.(1)¤¡%ᦪḄ./¥|P(2,—1),!¡%ᦪḄ⊤§((2)¨¡%ᦪḄ./ᔣ0ª«A¬ᓫ®¯./°x±r[!²Ḅ³´¶:

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2939._________AH=AD-HD=3——=-,ᙠ?+34ᵫ@A$ᳮA+=JA”6+Jᓽ&.44C2DE=x,FOE/sFCEg,GHIDE\2Xk,ᑣ4.JKLS&CFB~BC,DFDEDE,DFkeFHDFk,----=-----=-----=k,nlAnᑣ=.f\FDHs/\RDA==ᑣBFBCADBDZ+lABBDᦇ+1s-DEFH2'KDEF_2DEFHk4ᡠQS&DAB=RS"'ᡠQS^DABLAOABA஺A8O+1K2=S+TUVDᡀ4ᓽ91=ᦇ+1XY2—14X1+-.᪷UZᦪᨬ\24S]^4ᓽGU2Ḅᨬᜧ\.31ூbc1d&௃&fজ᝞i1,VAE^CE,.ZEAC^ZECA.•.•klmABC஺nm4/.AD//BC,NEAC=ZACB.OB=OC,.ZACB=ZDBCᓽZACB=ZDBC=ZECA•••BD1CE,.NMC=90஺4/.ZECA+ZACB+ZDBC=90°,/.ZECA=ZACB=ZDBC=30°ZDEC=Z£CB=60°,tanZDEC=tan60°=o.ঝ᝞i2,)*F,FH1AQ1*4.

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32(]Y.2=k+1—k~=—k—+-5.I2)4V-l<0,:.Sk=[{,*ஹ520max4ூ*~௃⚪ὃnmḄឋ4ῪmḄឋ4mḄᑨ$ឋ4&m4UZᦪᨬ\4nmḄឋஹmḄᑨ$ឋஹ&mஹUZᦪᨬ\&⚪Ḅᐵ.

33