2A.3B.2C.4-77D.4-⍝ ஹ⚪3V=——11.ᦪ“XḄy01,a ,ᑣ=12.ÁÂḄ᱄ÄᙠÅÆ2ÇḄÈÊËÌ᪷ÎÏÐÁÂÑÌÒ᧕ḄÔᓟ.ËÎÏḄᙢ×Æᙢ☢Ù4B2.5ÇÎÏÚᯠZᚖᕈᱥÞßÙ1ÇḄÁÂÆàáḄâÈ0.5ǺᜮäåæçᑮÎÏᑣÎÏḄᨬèyÆᙢ☢ḄÆé=Ç.13.=ᡭ⌼ìíîïðñᡊᶍÙᙢḄôᔠឋ÷øùúûüþḄᝰ ᝰ ᑮᓰᙢ☢ᐳ100.9ᐸᝰ ᓰᙢ☢ᓰᙢ☢Ḅ23.4!"ᝰ ᓰᙢ☢#xᓰᙢ☢$Jᑣ&'ᙠᝰ )Ḅᓰᙢ☢ᔜ$+,⚪./ᑡ12#14.3AB$0Ḅ56CD$7!8AC=MAD,NCNDᜧ40°,ᑣNA#—;.15.&'=-1+>—___.16.3ᚁA#30°ḄBᚁCEḄFGHAC#2m,ᑣEḄᚁ☢GHAB#I3⚓ᐳ9⚓
30Cஹ⚪17.LMᖪOḄ᪗Q#600ᐗ/TUVWQXḄQY#486ᐗ/TZ[VWQḄ\ᑖ᳛_`.(1)abMᖪOcVWQḄ\ᑖ᳛d(2)ebMᖪOfQ#450ᐗ/TVWQᐳghiMᖪO100#,#jVWQ├gḄlᑭno+p4680ᐗ.qIrVWQXs+⌕ghbMᖪO+Tu18.LvwxyAzvḄ├gl{#6|ᐗ}yc~vḄgQxy+400ᐗ.eᓬhḄᦪ_`├gl{xy+20%.(1)a}yAzvc~vḄgQ.(2)bvw&ᑜfrᢇAzv)Bzvᐳ45~AஹBzvḄfQYᑖ$1100ᐗ1400ᐗ}yBzvḄ├gQY$2000ᐗ⌕aBzvḄfᦪoUAzvᦪḄfjᢇvᨬᜧᑭnᨬᜧᑭn$+u19.3AB$0Ḅ56P$BACrUP0ḄᑗPC,ᑗ$C,UC7C0-.15pE,CO,CB.(1)a=PD$ḄᑗdtanB=r(2)e18=10,2,aPAḄ;(3)AB,0E,0P¡EḄᦪᐵ£Z¤¥ᳮᵫ.L᪥©rᙽ«¬ḄA®¯ᙢ(3)²³#´ᱥ¶/ACB=90°,I4⚓ᐳ9⚓
4ZCAB=54°,BC=60Â.20.Ä᪥ÅᜓCᜐᔣ¬ÉABÊrᩩÌÍCD,jCD´ᱥ¶ᑖᒘᡂ☢_ÑḄÒᑖ.ÓÔᵨ5Ö)ᙊØᙠ3hÌÍCDÙÚᶇ3ÜÝÞd21.#àpáâ᪥ᙠCᜐãäråæFçᑭᵨè⍝¬êF.cë"1Âè⍝ìᵨ#50ᐗ,aë"è⍝Ḅᨬíìᵨ.Ùsin36°«0.588,cos36°«0.809,tan36°«0.727,úûᑮ1ᐗÞ22.3AஹB$0CḄNA0B=120°,C$8ABḄCEL0Aÿ DOE,AE.:AE=AO.C23.=1«ᙠ▲!"#y=x,=xᑖ'(AஹB+,AஹB+ᑖ'-xy.Ḅᚖ1ᚖ2ᑖ'3D 1,05ஹC 3,05,78ABCDḄ☢:38.<=>ᦪḄ@᪆24.aABCᙠD☢Eᙶ᪗HIḄJKজᡠNAᙶ᪗3 -6,05,Bᙶ᪗3 4,05,D3BCḄIE31ABQRDES,AஹBஹC<ḄTᱥḄ@᪆V3y=ax2+bx+8.5⚓ᐳ9⚓
5(1)TᱥḄ@᪆V[(2)জ\4BDE]DE3.^ᢚBḄ`a3G,bGាdeᙠTᱥḄ`a.QfGḄᙶ᪗[(3)ঝbEᙠ1ABQhRfTᱥy=ax2+bx+8Ḅ`a.QiᔲkᙠF,lm]CஹDஹEஹF3⚔Ḅop83Dqop8rskᙠtᑏvFḄᙶ᪗[swkᙠtxyᳮ/¥\DXᵫ.জঝ25.3||@}I~~Ḅ`᪥ᵱஹḄq᪵¡¢.£Ḅ᪵¤IᵱஹḄᦪ᪷ᡠmᦪᑴᡂᡠNḄ⊤.ᵱ_|⚣ᦪீ)ᔛᡧ82^\ABCDEos¦'ᵱ(cm)A150Wx<155B155Wx<160C160Wx<165D165Wx<170E170^x<1756⚓ᐳ9⚓
6᪷⊤I§¨Ḅ©ª«¬ᑡ¯⚪±(1)ᙠ᪵¤IᵱḄIJᦪeᙠ¦(³¦'´µ)ᙠB¦Ḅᨵ[(2)ᙠ᪵¤Iᙠ170Wx<175·¸ḄᐳᨵᦪᨬºḄi¦(³¦'´µ)[(3)᪥ᐳᨵᵱ500480t»ᙠ160Wx<170·¸Ḅ~ᨵº¼r|lx+l>01_2_+x\226.ᐜᓄ¿ÀÁ±([-ÃI)+1-2X+F,ᐸIxḄÁÅwÆV¦[Xx-D'xḄᦪ@I⌱£.7⚓ᐳ9⚓
7Éὃ¬ᫀஹᓫ⌱⚪ூᔁc1ஹூᫀA2ஹூᫀC3ஹூᫀD4ஹூA5ஹூᫀB6,ூᫀA7ஹூD8ஹூ■Bூ0C10ஹ ஹ⚪ூᫀ31ஹூᝠ0S2ஹx+j=100.9ூᫀx=2y>3.43ஹூᫀ25.4ஹூᫀ5ஹ8⚓ᐳ9⚓
8ூ᧡m36ஹ<ஹ@¬⚪ூ(1)10%[(2)!"#$%&'(20#ூ(1))*A+,-.,#/1600ᐗ1(2)2315ḘA+,ஹ305+,67#ᑭ9ᨬᜧ<ᨬᜧᑭ=>25500ᐗ.ூ@ᝠ(1)A᪆1(2)C.4=g[(3).0=4OE0P.ᳮᵫA᪆.ூF)ூH⚪1ᵨJKLA8ḄᚖOPᑖRSABTUD,VWCD...................3ᑖூHᐺ2LCE_LAB.•zACB=90°,zCAB=S4*AzABC=36*_______________4ᑖᙠRt-BCEZ<=sinzCBL.....................6ᑖ•••CE=BC-sinzCBE=60*sin36*as35^8[\.......8ᑖ]SISḄ^_`ᵨ=50<£«1764 ᐗ____________cூA᪆[fcs-]def/y=-,y=—ூᝠ(l)J=YXLIX+8[(2)GUḄᙶ᪗/(-1,4+711)ᡈ(—<4-m)[(3)nᙠ(-1.4),(-1,-4)ᡈ(-1"2).ூᫀ(1)D[12[(2)10[C[(3)pqrsᙠ160ூᒾ9⚓ᐳ9⚓