äƵ٤ߡޤ
1129ڡ 0:03:59 31215
Ĺ
ãĤä濴ˣä£ä˽ŤʤޤDzžޤ
ưλѷ򢤣'ã' ޤѤϣ' ˤĤȤȡ
ã'ϣãФ˽ŤʤΤǤ
(''/'')('/£)(ã/')ᣱͥ饦
ꡢ''''ᣳФޤ
㤫뤿 1129ڡ 0:17:59 HomePage:åλؤ31216
Taro
ñ㤹Ȼפ9/4ꡢƴְ㤤˵Ťޤ()
ɼ꤬ʤѴؿϢȯǤ
1129ڡ 0:19:35 31217
ޥ
ߥޥ󡢤äȤޥߥ򤷤Ƥޤ٤ޤ0:030:04餤ιˤʤޤ˿ޤ..m(__)m
iMac 1129ڡ 0:22:21 MAIL:masaru-y@sansu.org HomePage:31218
kasama
#31217 Ʊ9/4ޤ(^_^;)
²λ 1129ڡ 0:31:26 31219
ʸ


ޤפ㤤򡦡
1129ڡ 0:36:31 MAIL:kyorofumi@msn.com HomePage:ʸ31220
sugitakukun
Dz򤱤ޤ

ȤäϡPCA=QCDȡPCB=QCAǤ

ȤꤢACDAC˱äޤ֤ޤ
ǡACʿԤB̤ľƤޤ

ǡCPĹB̤ACʿԤľȤθRȤȡ
PAC梤PRBʤ礦ˤ1:3ꡢBR=12
ˡCRB=PCA=Q'CBޤ֤ˤʤΤǡCQ'αĹBRθSȤȡ٤ϢCRB梤SCB΢֤ˤȤʤޤ
BR:BC=12:3=4:1ꡢ椬4:1ʤΤǡBS=BC1/4=3/4Ȥʤޤ
ǸˢBSQ'梤ACQ'ʤ礦ˤܤСBQ':Q'A=BS:CA=3/4:4=3:16ȽФƤޤ

äơAQ=AQ'=316/19=48/19ġʲ

;̡
Υ󥭥󥰤Τۤ餤ˤʤäƤޤ
ޤžäƤޤΤġġ
KKS衡 1129ڡ 0:38:58 MAIL:sugitakuunikun@msn.com HomePage:White Shadow31221

CPαĹDAαĹθRCQαĹD̤ꡢACʿԤľȤθSȤȡ
PAR梤PBC顡AR=1cm
CAR梤CDS顡DS=3/4cm
QAC梤QDSǡϡ43/4=163
äơAQQD 163 ˤʤ뤫顢AQ=316/19=48/19cm

1129ڡ 1:02:24 31222
CRYING DOLPHIN
⹻̾ΥᥤVer
ޤϢAPCACޤ֤ƢARCꡢʿԻշACDE
ʿԻշդCRCQαĹȤθ򤽤줾STȤ롣
ȤλȤޤꡣ
ARSȢDRCARRDASDCAS1cm
CASȢCDTCAASCDDTDT3/4cm
ACQȢDTQAQDTACDT43/4163
äAQ316/1948/19cm
饯񡡡 1129ڡ 0:52:03 HomePage:ȤƻȤ31223

ȿ§Ȥäˡ1ġ
1/2BCD=BCA=PCQꡢBCP=CAQ,PCA=CQDȤ狼ޤ
ǡBCP=a,PCA=bȤȡѷѸꡢ
1/2*4*ã*sina:1/2*3*CP*sinb=1:3ꡢsina:sinb=1:4Ȥʤޤ
äơAQ:QD=ACQ:DCQ
AQ:QD=1/2*4*CQ*sinb:1/2*3*CQ*sina=16:3Ȥʤޤ
äơAQ=3*16/19=48/19Ȥʤޤ
ȤäˡϡŤΤѤǤ

1129ڡ 1:14:17 31224

1ܤ΢CAQϢACQ,CQDϢQCDθǤ
1129ڡ 1:17:22 31225
Ϥʤ
1Ⱦ٤ʤ굢𤷡Ѥäȸ9/4ꡢ16/9ꡢޤä㤤ƤΤǿˤ󤬤ޤѣäʿԤǤޤΤǤȤήǡ
1129ڡ 2:06:48 31226
banyanyan
ȤꤢȤäƲ򤭤ޤޤ򤫤Τ˼ּä

http://banyanyan.up.seesaa.net/image/sanchalle-576-48_19.jpg
1129ڡ 2:35:00 HomePage:뤤²ײݻ31227
ǥ
ޤءʥͥ饦ʿ;ˤǤͤƤޤä
줫餬֡
1129ڡ 10:25:20 MAIL:cacrh525@hcn.zaq.ne.jp 31228
ģ
褤λDz򤱤ޤ빽ϤҤޤäɡ
1129ڡ 11:41:09 31229
uchinyan
Ϥˤϡơϡ
ࡤǽ鸫ȤƬƯפ鷺ɸܻѴؿǤäƤޤޤ
ƹͤơΤ褦ˤʤޤ

CP P ˡDA A ˡ줾Ĺơ E Ȥޤ
ޤCQ Q ˱ĹD AC ʿԤơ F Ȥޤ
ޤED//BC ʤΤǡPAE PBC ǡAEBC = PAPB = 13 AE = BC/3 = 3/3 = 1 cm Ǥ
ˡEAC = EAB + CAB = ABC + CAD = CDA + FDA = FDCACE = QCP - QCA = DCA - QCA = DCF ʤΤǡ
AEC DFC ǡDFDC = AEAC = 14 DF = DC/4 = 3/4 cm Ǥ
ˡFD//AC ʤΤǡQAC QDF ǡQAQD = ACDF = 43/4 = 163 Ǥ
ǡAQ = 16/(16+3) * AD = 16/19 * 3 = 48/19 cm ˤʤޤ
ͥνȡ 1129ڡ 12:35:43 MAIL:uchi@sco.bekkoame.ne.jp 31230
uchinyan
ǼĤɤߤޤ㴳ν٤줬ä褦Ǥ͡

#31216
䢤ãĤä濴ˣä£ä˽ŤʤޤDzžޤ
ܥͥ饦ȤˡǤʤҤȤʬ餺
(ɲ)
ưλѷ򢤣'ã' ޤѤϣ' ˤĤȤȡ
ã'ϣãФ˽ŤʤΤǤ
Τ Q' CP ޤP = Q' ǤϤʤǤ͡
(''/'')('/£)(ã/')ᣱͥ饦
μϤǤϡ㤨С
A Q' Ȥ BC Ȥθ E Ȥȡ
D'Q'/Q'A' * A'E/EC * CA/AD' = 1ġ(1)
AP/PB * BC/CE * EQ'/Q'A = 1ġ(2)
AQ'/Q'E * EA'/A'C * CD'/D'A = 1ġ(3)
(2)(3)աơ
AP/PB * BC/CE * EA'/A'C * CD'/D'A = 1
CE = x Ȥơ
1/3 * 3/x * (1 + 3 - x)/4 * 3/1 = 1
CE = x = 12/7 cm, BE = 3 - 12/7 = 9/7 cm, A'E = 1 + 9/7 = 16/7 cm
ʤΤǡ(1)
D'Q'/Q'A' * (16/7)/(12/7) * 4/1 = 1
D'Q'/Q'A' = 3/16
ꡢ''''ᣳФޤ
Ǥ͡
AQQD = A'Q'Q'D' = 163 ʤΤǡ AQ ޤޤ
(ɲý)

#31217
Ѵؿˤˡ

#31221
ȤꤢACDAC˱äޤ֤ޤ
ǡACʿԤB̤ľƤޤ
Ȥˡ
ΰϰ㤦ΤǤѷ򻰲Ȥϡ#31230ƱǤ

#31222
CPαĹDAαĹθRCQαĹD̤ꡢACʿԤľȤθSȤȡ
Ȥˡ#31230ƱǤ

#31223
ޤϢAPCACޤ֤ƢARCꡢʿԻշACDE
䤽ʿԻշդCRCQαĹȤθ򤽤줾STȤ롣
Ȥˡ
⡤ΰϰ㤦ΤǤѷ򻰲Ȥϡ#31230ƱǤ

#31224#31225
ѴؿˤѤθȤäˡ
ǤϤʤǤʤʤǤˡȻפޤ

#31226
ѣäʿԤǤޤΤǤȤήǡ
Ȥˡ
ܺ٤ǤȤޤϡ#31230Ʊʡ

#31227
ȤꤢȤäƲ򤭤ޤ
Ȥˡ㴳ʣȤΤѥäȸۤǤ

#31228
ءʥͥ饦ʿ;
Ȥˡ

#31230
βˡ
ͥνȡ 1129ڡ 15:15:37 MAIL:uchi@sco.bekkoame.ne.jp 31231
ϥ饮㡼ƥ
ǯʤDzˤʤΤǤ礦褦䤯򤯻֤򸫤Ĥޤ

Mathematicaˤ뻰ѴؿǤ
1129ڡ 17:04:38 HomePage:湩ؤ˥31232
Ĺ
#31231
ĹäƤ⡢ŤʤȤϽȻפޤ
ϤȤ⤫
Τˡͥ饦ˤʤäƤޤ(^^;
Ф

#31232
ϥ饮㡼ƥ
̵Ǥ
㤫뤿 1129ڡ 19:31:07 HomePage:åλؤ31233

䤢ϫƤޤޤ
ڤäơŤͤơͥ饦򣲲DzȤʤޤ
ͥ饦ȤȤȤϡơˤⲿȤʤȤȤʤǤ̤ǤǤ礦
1129ڡ 20:46:49 31234
banyanyan
ξ硢ʿˤҤϡǹͤ褤ΤǤϤʤȻפΤϻǤ礦ξ硢ФˤĤʤΤȻפޤġġ
ѷ桢ͳѷȤΤιͤǤ
1130ʶ 0:51:20 HomePage:뤤²ײݻ31235
X
ҥȤˤ錄ͤȡդa,b,cλѷǤ⤤Ȥȡ

ѷABCBC=a ʲάȤ롣BC1:xʬPȤ롣BAPCAQȤʤ褦QBCˤȤCQQBϤ餫

Ϥʤbˤ餺:c^2 ˤʤޤ

꤫ȤƤBȤACʿҤơAPαĹȤιžR,AQȤαĹȤιžSȤSABʿԤACιžTȤʿԻշABSTĤȤȤǤǤȤġ
1130ʶ 12:11:12 31236

äȤˤ
1130ʶ 15:08:28 31237
⡼ޥ
ХǤ3/2 ȤФפäƤơ33/14 ʤΤϤʤʤȤäȻפäƤޤ ^^; Żοǡܤ2ʬʤդˤʤ뤳Ȥˤäȵդ衣3*4/7-3/4 : 3*3/4*1/4 = 27/28 : 9/16 = 108 : 63
3*3/7*108/171+3*4/7 = 336/133 = 48/19
1130ʶ 17:01:08 31238
doba
#31236
Ϥʤbˤ餺:c^2 ˤʤޤ
äȡb^2:xc^2Ǥ͡
餯׻ǡb/xx/bְ㤨ΤǤ礦
£ҤȢԣӤȤȤȤǤ͡
ˤ衢ɩȤΤϤܼǤϤʤä褦Ǥ͡
Ĺʺν¨ƸС¤ĹˤˤϱƶʤȤΤ
ճʷ̤Ǥ
1130ʶ 18:26:23 31239
Ф
⡼ޥ󤵤ν񤭹ߤ򡢿XƤ졢׻ʤƤä
ޤաƱְ㤤פߡ
ˤƤ⡢ؤä
1130ʶ 21:24:34 31240
X
Хݤ󤫤飳ʤʤʤäƥ᡼뤬ƤΤǥ⡼ޥ󤵤ΥåޤäƤǤ
121ڡ 11:25:39 31241
⡼ޥ
#31240,#31241
褯ʬޤ^^
ФݤϤ錄ȤޤäƱˡǤƱȥåפȤޤäƤääͻҡʬΥɤæФϤȤۤɺͤ񤷤äƤȤʳǤޤ ^^;v
121ڡ 11:37:22 31242
tl
ACޤ֤
http://ff.sansu.org/sansu/576.gif
ǡAB^2AC^2 BDBECECDȤޤ
⡼ޥ󤵤ȤФݤζΰפϤ⤷Ǥ͡orz...
121ڡ 12:27:24 31243

ͧãĤä濴˲žơܣãĤȢܣ£ãŤͤƲ򤤤Ƥޤ
ܡ 121ڡ 16:50:45 MAIL:daisuke18@sb.dcns.ne.jp HomePage:31244
Melvy
ABC 4/3 ˳礷ƢBCA ACD ˽Ť͡A'AD ʬ CP' Фƥͥ饦ǡ
ϽǤ̵ȹؤؤDCQ = ACP ʣʿ̤Dz򤤤ƤǤ٤äƤ鷺ޤäƤ (^^;)
ʤߤˡǽ 9/4 äΤ⤪« (^^)
121ڡ 23:55:50 HomePage:ˤ ʤˤ⤢ޤ31245
ޥ
ïƱΤޤ󤬡ꤷˡ񤤤Ƥޤ

CPαĹDAαĹθRBAαĹCQαĹθSȤޤȡARCȢACSˤʤäơAR:AC=1:4ꡢAC:CS=1:4ǡAS=16ȤʤޤäơAS:CD=AQ:QD=16:3ꡢAQ=48/19Ȥ櫓ǤǤ礦
122 18:51:32 HomePage:31246
ȤޤԤ
AE=1ʤEACˤȤ롣
ACP=BCRȤʤRABˤȤ롣
CR,CPBEȤθ򤽤줾S,TȤ롣

դAR뤳ȤƱ

ѷCBEջѷǤ뤳Ȥܤ
BT:TE=ES:SB

ʾν򸵤ˡͥ饦򣲲Ȥ
AR:RB롣

ʲά

Ф⤷ޤ󤬡䤬פĤˡǤ
123ʷ 5:18:31 31248
uchinyan
ʤ֤ʬˡ񤭹ޤƤޤۤ͡ʤɡ

#31232
Ѵؿˤˡ

#31234
ڤäơŤͤơͥ饦򣲲DzȤʤޤ
褯ʬޤ󤬡#31248Τ褦ʲˡʤΤǤ礦

#31236#31239
仰ѷABCBC=a ʲάȤ롣BC1:xʬPȤ롣BAPCAQȤʤ褦QBCˤȤCQQBϤ餫
Ϥʤbˤ餺:c^2 ˤʤޤ
η׻Ǥ⡤
䤨äȡb^2:xc^2Ǥ͡
ˤʤޤ (^^;

#31238#31240ʤ
¿βˡǡƱͤƱְ㤤ȤΤϳΤ⡣
äȤ⡤ˤϡͤβˡ褯ʬʤΤǤ(^^;
(ɤ顤ABC žСΤ褦Ǥ#31251ȡ)

#31243
ǡAB^2AC^2 BDBECECDȤޤ
դࡤʤ줤ʴطȤΤޤǤ
ʤμϡ#31223ˤäƾǤΤǡȤƤϡβˡΥХꥨȤȤˤʤΤʡ

#31244
ͧãĤä濴˲žơܣãĤȢܣ£ãŤͤƲ򤤤Ƥޤ
ǤϤ褯ʬޤ󤬡βˡϴĤ񤭹ޤƤޤ͡

#31245
䢤ABC 4/3 ˳礷ƢBCA ACD ˽Ť͡A'AD ʬ CP' Фƥͥ饦ǡ
ʤۤɡ4/3 ܤ륢ǥϤޤǤ͡ʤСͥ饦ǤǤޤ

#31246
ޥ뤵ˡ
ѷ򻰲ȤˡΥХꥨǤ줬ľ˻פƤޤ

#31248
ϡACD βžΥХꥨǤ͡
ջѷ򤦤ޤȤäƥͥ饦ǺѤޤƤ褦Ǥ

äƸƤȡХꥨϤޤ
ѷ򻰲Ȥˡ
ABC ACD (Ϥεդ)žŤͤˡ(ͥ饦Ȥ)
ήΤ褦Ǥ
ͥνȡ 124ʲС 9:24:16 MAIL:uchi@sco.bekkoame.ne.jp 31249
X
dobaΥåȤƤޤ顪uchinyanְ㤤λŦ꤬Ȥޤ
123ʷ 18:12:40 31250
⡼ޥ
#31249
uchinyanء
ޤʤΤǤɤݤʤΤǤ¿ʬ#31244 ΤΤͧͤȤƱ⡩
ACP=DCQ ʤΤǡACB C 濴˲ž顢DCA ˽Ťʤꡢ4cm3cm΢ŤʤꡢCP CQ ŤʤޤAB AD θŤʤä΢ܤ2ʬˤʤäƤ뤳ȤȤäƹͤޤʲά¾βˡ٤˳ʤʤƻפäƤޤOrz^^;
#31243 tl AB^2AC^2 BDBECECD äƤˡŨǤ͢
ʼ顢äʤǤ
123ʷ 22:31:34 31251
ƥ˥
Ǥڤ˲򤱤ޤ͡
123ʷ 22:57:18 31252
tl
#31251
ΥΥܤˤȤƺܤäƤޤȤοޤ顢ȤäƤäʤƳޤ
124ʲС 20:05:35 31253