!!!
ä1
CAA¦αĹAF=DEȤʤF3452ĤäĤǤƤǤޤ
͡ 521ڡ 0:06:44 43286
٥륯åĥ
Ǥ345ȤΤȤʤΤǤΤޤ޻ȤäƲ򤤤ƤߤޤʿʤDzˡϤʤǤ礦͡
521ڡ 0:12:53 43287
٥륯åĥ
345ȤȰ6CDгĹ6ΤҤǤѤ24ECADѤȾʬ12
ȤBDEBACǽФޤ
521ڡ 0:18:15 43288
٥륯åĥ
ν֤ʡ5äƤΤȤդĹƤҤäơҤгϿľ˸뤫ľѻѷǤơ345ѡ

!!!
̤ǤȤޤ
521ڡ 0:31:36 43289

ADECդˤƤäĤʿԻշͤ
ʿԻշѤϣλѷΣܤ
ѷϣУУѤѣ
Ѥ⣱
Ȥλѷϣܣǣ
ѤܤդϣܤĹ
ACDEΣ
äACAC/2=5
AC=10/3
ͤतǤ
521ڡ 0:51:45 MAIL:nikotan@fat.coara.or.jp 43291
⡼ޥ
äȤ^^;
5^2Ƿ׻Ƥޤ ^^;
ED=x, AC=5-x
4*((5-x)^2-x^2)/x^2=3*4
3x^2+10x-25=0
x=5/3
AC=5-5/3=10/3
¨ ^^;v 521ڡ 0:52:40 43292
ǯ
ǽ顢BDEѤȤƤƤ㤴ˤʤäƤޤ
AEC180ٲžCEǤäĤAιԤQȤȡQCDջѷCD˿򲼤ơ3:4:5ľѻѷǤQCDѤ12cm2ǡQCEѡCADѤꡢͳѷADEC=12cm2
ΤˡACDE=2:1ꡢAC=5*2/3=10/3Ȥޤ
521ڡ 0:53:45 43293
baLLjugglermoka
ȤȤ򺣻פФƹƤƲ򤭤ޤ˻ʤäƵդΤˣֳݤʤ褦ˤΤǤ

ADE180ٲžAD³Сդ5ѡդ6cmջѷǤѤ12cm^2ADE=DECꡢACDE=12cm^2äơABCϭBDEܤ˳礷ޤˤʤäƤ롣AC+DE=AC+0.5AC=5ꡢ
AC=52/3=10/3
521ڡ 1:14:08 43294

ߤʤƱȻפޤ
ã˱ĹơţĤȤʤƤȤȡƣģäϣջѷ
ƤãĤ˿ƣǤȢƣǣâᢤƣǣĤľѻѷˤʤΤǣƣǡᣴ
äƢãƣġ᣶ᣱcm^2
ƤȣģŤʿԤǣơţĤʤΤǢƣġᢤģţáäƻͳѷãģšᢤãƣġᣱcm^2£ãᣱcm^2
£ţĢ梤£ã椫դAC^2:DE^2ᣱáģšáơᣲ
äƣãơáܣơᣳáᣵ
áᣱ
񤳤ȤȤĹʤäƤޤޤ

Ϻꡡ 521ڡ 7:41:12 43295
Ȥ
ɸE(0,0),D(a,0),B(b,8/a)Ȥ
BED梤BCA=a:5-a=b-a:x1=8/a:y1
x1=(b-a)*(5-a)/a,y1=8*(5-a)/a^2 򤽤줾Bx,yɸ
Ax,yɸ,CxɸAxɸ5-a,yɸAyɸƱ
AE^2=25,DC^2=36ϢΩ򤤤a,bޤAC=5-aXMaxima Ǥ

factor(b-(5-a)*(b-a)/a)$factor(8/a-8*(5-a)/a^2)$
factor(%o1-(5-a))$num(factor(%o1^2+%o2^2-25))$
num(factor((a-%o3)^2+%o2^2-36))$expand(%o4-%o5)$
5-rhs(part(part(solve([%o5=0,%o6=0],[a,b]),2),1));10/3()
˭ԡ 521ڡ 1:50:52 MAIL:fttnm528@ybb.ne.jp 43296
ϥ饮㡼ƥ
Ϥ褦ޤ

Ǥǿޤ
521ڡ 4:54:01 HomePage:湩ؤ˥43297
ȤޤԤ
ACPȢPDEջѷǤ뤳ȤˤĤơľ
Ĥ뤳ȤǤˡͳѷCADEѡ12Ф
ǡ羮ԥߥåɻѷѤᣱ
äơ12ʤΤAC5*2/1+2ˡ10/3
521ڡ 10:21:29 43298
uchinyan
Ϥˤϡơϡ
פ֤ˡ޷γڤ򤤤褦ʵޤϤ޷Ϥʡʴǡ

ED αĹ DF = CA Ȥʤ褦 F ȤޤȡCA//DFCA = DF CAFD ʿԻշǤ
ǡEF = ED + DF = DE + AC = 5 cm = EAAF = CE = 6 cmǡEAF ϡEA = EF = 5 cmAF = 6 cmջѷǡ
E AF ˿򲼤­ H ȤȡAH = FH = 3 cmEAH ڤ EFH ϹƱ 345 ľѻѷȤʤꡤ
EH = 4 cmEAF = 6 * 4 * 1/2 = 12 cm^2Ǥ
ꡤCADE = ECA + ADE = DCA + ADE = ADF + ADE = EAF = 12 cm^2ȤʤΤǡ
BAC = BDE + EAF = 4 + 12 = 16 cm^2BDEBAC = 416 = 14BDE BACȤʤäơ
BDE BAC 12DEAC = 12AC + DE = 5 cmAC = 5 * 2/(1 + 2) = 10/3 cmˤʤޤ
ͥνȡ 521ڡ 12:16:45 MAIL:uchi@sco.bekkoame.ne.jp 43299
Mr.ǥ
E̤CDʿACαĹθFȤȡAEFϡ5,5,6ջѷ
ECAD=EFD=12(cm^2) ȤʤꡢϳȤʤ褦ˤ
AC:DE=2:1AC=10/3(cm)
Ȥޤ
521ڡ 12:56:28 43300
uchinyan
ǼĤɤߤޤ

ࡤФϳ͡ǡ
AC ED ĹꡤCADE Ϥΰ 180žꤷơʿԻշ(ϤҤ)äꡤǤ
ɤϡ556 ջѷ = Ʊ 345 ľѻѷġ򸫤Ĥ
ϡѷͳǡ桤桤򤯡ȤˡΤ褦Ǥ
ǽʬϺ٤ХꥨȤʤΤǡʬहޤǤʤǤ礦

ʤ 345 ľѻѷϡΤߤʤ餺ǤΤȤȤƻȤäƤΤǡ
ʤȻפޤ
ɤɤȤäƤ͡ȸФοǤ (^^;
ͥνȡ 521ڡ 14:02:26 MAIL:uchi@sco.bekkoame.ne.jp 43301
ޤ
⡢ľѻѷ⤵椫Фޤ
521ڡ 15:27:53 43302

ˤϡ
ῲʤФʤʤäΤˤϰ㤤ʤΤǤ
¤ΤȤޤǤä˺Ƥޤ(>_<)
餷Ǥ^^
521ڡ 16:34:19 43303
٥륯åĥ
345ϼǤϴŪ˻Ȥޤ衣
ϰϤæƽꤵ줿ϤޤޤʤޥʥοϰϤ˴ޤޤ뤳ȤˤʤäƤޤޤ
ʤͤˤäƤϡ345˸¤餺ʿ¾οؤθΤäƤʤΤȤƶ뤳ȤϤޤ͡
ˤϤΤޤ޻Ȥ뤷񤫤Ǥ⡢˷̤ʬäƤв򤭤䤹Ȥ⤢Τǡ
521ڡ 22:41:53 43304
!!!
̤3:4:55:12:138:15:17¸ߤؼλ˶äȻפɤʤ
ΤʤȲ򤱤ʤϤˤʤä뤱
͡ 521ڡ 23:31:16 43305
٥륯åĥ
34551213ʤɤͭ̾Ǥ͡ζäޤ
!!!ΤäƩꡢŪˡΤʤȲ򤱤ʤϽФƤޤ󡣽ФƤȤ餽ƳͶƳĤǤ
ΤǶƤ¤ϤʤΤǡ345ŵꡢȤ碌ꡢ⹻ؤ2C6ʤɤ򶵤ƤȤ⤢ޤȤǤСˡȤƤΤޤ޻ȤäƤΤɤǤѤޤǶƤȻפޤ
522ʶ 0:27:44 43306
!!!
ʿΤϰǾǽ饮ꥮɻäƤʤȤʤ󤸤ʤΤʤ

Ȥǹ⹻ؤ2C6äƤʤǤ
͡ 522ʶ 1:37:12 43307
٥륯åĥ
345λѷȤäƤϤʤȤȤǤϤʤФƤ뤳ȤȤϥäƤȤǤ͡
ʤ顢μˡͶƳˤäƹͤƤ345ƳǤʤȡäƤȤǤ
ΥȤξ硢345ȤȤʤΤǡϤǤȻפޤ
ǡΤʤ褦ʸդäʸϤĤǽФȤΤ˻Ƥ뤫⡣

2C6ϴְ㤨ޤ6C2Ƚ񤤤Ĥ꤬
26ϾCκȱ˽񤤤ơ6Ĥ2ĤȤ߹碌ɽӥ͡Ȥޤ
522ʶ 1:56:05 43308
AD©
ޤ򤱤ʤơס˺ʤ©Ҥ⤤ʤˤ벼ꡢդҤȤ顢ţĤĹФ褤ȤȤ˵Ť
äƥ¸ɤλϤޤꡩȤ⻻򤯤ˤϥåɬפȤȤǤ礦
523ڡ 15:28:50 43309