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9ᦑ⌱B.ூ568⚪⌕ὃ;?ḄឋO Z5C,O,EᙠAᩩf lOCᨬR.⚪ᐵT.9ஹCூ.᪆⚪ᑖ᪆/ᵫ⚪KB=>?ᐹᜓA]MA>ID Ye⌱SAS,AAS,ASA,ᵫYAR,ASA,BRAAS,DRSAS,Gᙳ ¡ᨵDH.ᦑ⌱Cὃ5/=>?ᐰDḄᑨppᳮ10ஹBூ`.¤ᑖ¥Z/2x=x-2,.Z/%=—2,¦§x=-2Rᑖ¨©ªḄ. ᑣᑖ¨©ªḄ.hx=-2.ᦑ⌱B.ூ56⚪ὃ;<ᑖ¨©ªḄ. .ᑖ¨©ªᑭᵨ10ூᑖ᪆¡ÌDῪ=>?Kᩩ]|l ⌕ÍAᩩ]RῪ|ÎÏᑖÐÑÒ wbHÓÔ=>?=]ᐵÕḄÖ×ؤ ᓽYZÙᫀ.ூ`../•.•DῪ=>?ḄK]|ᑖ´R3M6,.••জῪh6l =>?Ḅᕜ|h/6+6+3=15 ঝῪh3l 3+3=6,=>?Hᡂß.•.DῪ=>?Ḅᕜ|R1.ᦑ⌱/C.ூ568⚪⌕ὃ;DῪ=>?ḄᭆáM=>?Ḅ=]ᐵÕ DῪ=>?Ὺ|HplAp⌕ᑖÐÑÒ ZᑮᐹãḄ=ᩩ]|¹⌕bHÓÔ=]ᐵÕḄÙᫀؤ.äஹåæ⚪½ç⚪4ᑖ ᐳ24ᑖé13ஹ1.ூᑖ᪆ᙠê|ëA5M,᪷uì]?Ḅ>Mh360YZNBOM=U°,w᪷uJ⊡>È⊡ᓽYZxÒ.ூ`../ᙠê|ëA5M,1ᡠï.•ì]?Ḅ>Mh360°,äNBOM=360°-220°=11°.VZBOD+ZBOM=180°,.ZBOD=180°-NBOM=180°-11°=1°.ᦑÙᫀh/1ூ568⚪ὃ;ì]?Ḅ>ðñÊ ᐵTᙠEPQ>M360.14ஹ8ூ.᪆᪷uß©᪷Ḅpò YZóÆ©ᦪ ᪷uÆ©rÊ YZÊôõ©᪷.ூ`../43=64,-764=1.ᦑÙᫀh/1.ூ56
11⚪ὃ᪷ᐜET.15ஹ2.0ூ-᪆2.026kg,[ᑮ0.1ᓽMᦪZḄZḄᦪxUᐭ2.0,ᦑᫀ2.0.16ஹ5cmூᑖ᪆᪷4⚪#~Ck6AD=DC=x,BC=y,ᯠZᑖ?ᑡCB-,E᪷456ḄᐵᑨYᓽGB-ூ^--kᡠ|,AD=DC=x,BC=y,ᵫ⚪#uxy++2xx==2l2lᡈJx+2x=21y+x=\2x-4x=7-¡irᡈ¢[y=l7[Xx=4£9Ὺ56Ḅ8,8,17,<¤ᔠ56Ḅᐵ;y=17x=7u9Ὺ56Ḅ14,14,5,[y=5ᡠ¨79Ὺ56Ḅdz5,ᦑᫀ5cmூ⚪ὃ56ᐵ9Ὺ56ḄឋK.17ஹ3.32X2ூᑖ᪆©ªOᦪ«Ḅ⊤|6aXH)nḄ6ᐸ¯iW|a|V10,nᦪ.[nḄ⌕²³´ᦪµᡂaᦪ·¸¹ºvnḄ»M;ᦪ·¸Ḅvᦪ=D.´ᦪ»M1n\ᦪc´ᦪḄ»M1n¼ᦪ.ூ^-½L2¾ᵨ©ªOᦪ«⊤|3.32X2.ᦑᫀ3.32X2.ூ
12⚪ὃ©ªOᦪ«Ḅ⊤|«.©ªOᦪ«Ḅ⊤|6aXlonḄ6ᐸ¯lW|a|<10,nᦪ⊤|ᐵQ⌕\[[aḄ nḄ.18ஹ36°ூᑖ᪆⚔5X᪷49M95A56Ḅᑁ5AᳮᑡCᓽGBC¿À.ூ^--⚔5x°,ᑣd52x°᪷4⚪#Gp2x+2x+x=180-ux=36ᦑᫀ36°ூ⚪ὃḄ9Ὺ56ḄឋKA56Ḅᑁ5Aᳮ,ÂÃ9M95A56Ḅᑁ5Aᳮ-Ä⚪ḄᐵQ.ஹ-⚪(ᐳ78ᑖ)19ஹ(1)ᫀÇ-᪆c(2)1ூ-᪆(D᪷45TᑖVḄÈÉ~kÊËÌCk6ᓽGc(2)}D~DE_LAB:E,ᐜÍÎDE=DC=6,BC=BE,E᪷4AD=10,BCAE,BC=x,Ï!]AB=x+8,᪷4 ᳮBCxḄᓽG.ூ^-(1)~kÑ(2)}D~DEJ_AB:E,VDC±BC,BDTᑖNABC,/.DE=DC=6,VAD=10,**,AE=-y/102-62=8 VZDBC=ZDBE,ZC=ZBED=90",BD=BD,/.ADBC=ADBE(AAS), .BE=BC,BC=x,ᑣAB=x+8,ᙠRtAABC¯,ᵫ ᳮux2+162=(x+8)2,-ux=12,/.AB=12+8=1.
13Eூ⚪Ò⌕ὃÈÉ~5TᑖV5TᑖVḄឋKᳮ ᳮÓÔÕÖV᪀⌼e556ᑭᵨ ᳮᑡ-⚪ḄᐵQ.u—2320ஹ(1)0(2)----,a-\2ூᑖ᪆(1)᪷4¼ᢣᦪÚஹÛᢣᦪÜ DdᦪÚḄÝ««ᑣÞᓽG(2)᪷4ᑖḄßᔠ«ᑣᐜᓄáEâᐭaḄᓽGூ^-(1)´=-8xl+8+l=0<2—1(a+2)(a—2)a-2(2)´=a+2(a—1)-a—1V—2VaW2ḄåᑁḄᦪᨵ2,—1,0,1,2.yOH±2,aHl,/.a——\14ூ.᪆ᑖ᪆/(1)᪷u5Ḅᙶ᪗ fþÿ ᪷ Ḅᙶ᪗ABx,AB=3-(-2)=5, CᑮABḄ3-1=2,᪷☢(2)ᑖ AஹBஹCᐵ!x"#Ḅ A#B\C,ᯠ%&'()ABஹBCஹAU,*ᑏ ,⚔ ᙶ᪗(3)᪷.ᐵ!x"#ᑏ M'Ḅᙶ᪗.0⚪᪆3(1)4 6ᵫ⚪89ABxAB=3-(-2)=5,•••S:;=gx5X2=5 (2)6(2,-3) 22ஹ<᪆;ூ᪆@ABCDBFDEEFGCDH⌕ABOE=OF,OD=OB.ூJAB3•.•CDABCDEFGCD.,.AO=CO,BO=DOL•.♦ E, Fᑖ EOA,OCḄM .,.EO=-AO,FO=-CO22.,.EO=FO...CDBEDFNFGCDூ O0⚪ὃQRFGCDḄឋTUᑨW⚪ḄᐵXEYZ[\FGCDḄᑨWUឋT.
1523ஹx=—.2ூᑖ᪆ᐜëᑖìᓄᑖ-BuXḄEíîï~¿ÀᓽG.-ëᑖìux2-2x-x2+3x-2=3x-3,·⚗ᔠïu-2x=-L-ux=!2ðíîᑖḄ-.ூ⚪ὃ-ᑖ+,ÂÃ-ᑖḄÊË "#ñ⚗-⚪ḄᐵQ.24ஹ(1)জ20°,10° ঝa=2᱐(2)Ç-᪆.ூ^-(1)জ AD=AE,.,.ZAED=ZADE=70°,ZDAE=40°,ó• AB=AC,ZABC=60°,AZBAC=ZC=ZABC=60°,.,.a=ZBAC-ZDAE=60o-40o=20°,P=ZAED-ZC=70°-60°=10° ঝNABC=x,NADE=y,ᑣNACB=x,ZAED=y,ᙠADEC¯y=P+x,ᙠAABD¯a+x=y+p,a=2p.(2)k1,EᙠCAõzVlDᙠVöBClNABC=x,NADE=y,ᑣZACB=x,ZAED=y,ᙠZkABD¯x+a=0-y,ᙠADEC¯x+y+p=180°,.,.a=2p-180°.EᙠCAḄõzVlDᙠCBḄõzVlk2,DজḄ«Gua=180°-2/?.ὃ9Ὺ56ḄឋKc56ᑁ5Aᳮc56Ḅ5ឋK.a-80025ஹ(1)\,… (2)4,7b=600
16ூᑖ᪆^1`᪷4⊤ø¯Ḅù?ᦪ4ᓽজ4000ᐗᣎÖ2ü¯ªýA4üªýcঝ4200ᐗᣎÖ3ü¯ªýA3üªýᑡB-c^2`᪷4ᐳᨵ23ü¯ஹªýþÿ ᜫᣎᦪᑡᓽᣎḄஹᦪ.'2a+48=4000ூ ^1`3a+3=4200a—800 "6=600^2`#$%ᣎḄ& ஹᦪᑖ()x,y.x+y=11*+H-800x+600,y=7400x=4 1,,U=7ᦑ/4,7.ூ012⚪ὃ567ᐗ,9Ḅ:ᵨ ⚪ᐵ=>?@⚪AB⊤DEᑮᔠ〉ḄIJᐵKᑡ.26ஹ^1`ᵬMNᓫPQᡂS⚗M◤⌕60ᜩXMNᓫPQᡂS⚗M◤⌕90ᜩY^2`XMNZ[\M45ᜩ]QᡂS^⚗_.2ூᑖ᪆^1`aMbcJ)1,᪷e“ᵬNMb20ᜩ+XNMb30ᜩ=§”ᑡ ᓽY^2`᪷e⚪A⊤jᵬஹXkNḄ\Mᜩᦪl᪷emIᐵKnᵬN\Mcoᵨ+XN\McoᵨWU4,ᑡmIprᓽ s.ூ Q`#ᵬMNᓫPQᡂS⚗M◤⌕Xᜩ.t⚪An20302--1---=—x1.5x3x=60uvwx=60)ᑖpḄ .60x1.5=90+ᜩx
17snᵬMNᓫPQᡂS⚗M◤⌕60ᜩXMNᓫPQᡂS⚗M◤⌕90ᜩ.(2)#XMN\M?ᜩ.t⚪Anm1-----2x—+1.2/W<11460 n“45snXMNZ[\M45ᜩ]QᡂS^⚗_.ூ01{⚪ὃ56ᑖpஹ,ᐗ,9mIpḄ:ᵨᑖ᪆⚪AEᑮᔠ〉ḄIJᐵKᑡ> |}⚪Ḅᐵ=~Aᑖp⌕vw.
