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դɤߥϤʤ..

ꥸʥʤǤȤäƲ򤳤ȤǰΤǡ԰¤Ǥ...
PowerBook 73ڡ 0:06:41 MAIL:masaru-y@sansu.org HomePage:Men @ Work32466
nobu
ľѻѷޤ
73ڡ 0:09:18 32467
DS4
ɩAPBDȤʤPCBαĹˤȤäƻѷAPC(3դ3,4,5)äPB:BC=3:2
Ǥ礦
73ڡ 0:10:00 32468
DS4
3:4:5ľѻѷABPDľǡBAC=DPAʤΤ
ACDPθQȤȤѷQAPȻѷQPAȤȤäǤ
꤯ɤǤ͡
73ڡ 0:13:11 32469
Ѥ
http://www.diced.jp/~eityan/hoka/toi605.GIF
ʴǤ
֡ 73ڡ 0:13:18 HomePage:32470
DS4
ʲ褷ޤ
BC=DPȤʤPADαĹˤȤɤäΤǤ͡
73ڡ 0:15:35 32471
DS4
Ѥ󤵤
դǤ꤬Ȥޤ
Τ˰Ūˤ
73ڡ 0:16:36 32472
ͣ򡥥ǥ
£äαĹ //ģ ʤŤȤ
ãţĤʿԻշ£ģŤ 345 ľѻѷˤʤΤ
£áᣲǤꡢĤ£Ť˲Ĺ 3*(4/5)12/5ȤʤΤ
£á(1/2)*2*(12/5)12/5

ʾΤ褦˲򤭤ޤ
73ڡ 0:22:11 32473
ʸ
гľǡʿԤʤΤAP:PD椬гȤȤ3:4:5Фޤ
73ڡ 0:23:39 MAIL:kyorofumi@msn.com HomePage:ʸ32474
Taro
ż֤٤졢ؾ줬ޤޤorz
ʤǤεΩߤޤäƹͤޤ
̵ŤǤ

AD򣲣ΤФλѷˤɤĤޤ

ȤޤǤȣʬ餤Ǥ˱ؤǤƣʬƤޤorz
es 73ڡ 0:36:23 32475
banyanyan
http://banyanyan.up.seesaa.net/image/sanchalle-605-12-5.jpg
73ڡ 0:36:49 HomePage:뤤²ײݻ32476
fumio
ϡáäȤǤޤϤϤϡ
ϤϤäƤ䤹ߤʤ
73ڡ 0:41:24 32477
fumio
ʬAB򼴤˻ѷABCޤ֤3:4:5λѷAC'Dλѷ
ѤƲ򤭤ޤϤϤϡ
73ڡ 0:46:23 32478

¤̤äʿƣޤ
ξϰäƤ⣳ȤΤϤۤƱȻפޤ

гľ򤹤Τ˵Ťִ֤ˣ򤱤ˤʤޤ
餬Ĺä

ޡ 73ڡ 1:02:30 32479
λȼ
banyanyanοޤ򸫤ƤޤԤäޤ
ƱǤͤ򤳤ʤˤä
᤯ƤʤơŨǤ

ܥ⤤ĤϤ˿ޤ褦ˤʤ줿ʤȤ
ޤФޤ
73ڡ 1:17:08 32480
spicacoppe
#32479Τ餤˶Ǥ롣
λǤ⤦Ϥ٤ƱۤȻפǤޤ
K2 73ڡ 1:33:27 32481

Ū˻פĤġ
A鲼AE=4ѤȤʤ
ȡDE=5ѡBE=2ѤȤʤ롣ľѻѷ
AECBαĹθHȤȡADBCʿԤʤΤǡ
AH=4*3/5=12/5(ѡˡBH=3*2/5=6/5(ѡˡAHB=90٤Ȥʤ롣
ǡDAEͤ롣
DBC=ADEꡢADE2ʬAEθMȤȡ
AM=43/3+5=3/2ʭѡˤȤʤ롣
äơDAMȢAHBʤΤǡEAB=CABȤʤ.
äơBAEȢBACϹƱʤΤǡBC=2ѤȤʤ롣
äơѤϡ212/5/2=12/5ʿ᡼ȥˤȤʤ롣
ʤפĤΤϤ̣ס

73ڡ 2:05:02 32482
ߤ
ˤ⣳ľѻѷѤƤȤäΤ
ʤȤʤ򤤤ƤޤޤīˤʤäƤ餭ȤͤƤߤޤ

ˤͽۤ䤹˲Σʬ椬ʤΤԻ׵Ĥ˻פޤ
73ڡ 2:09:50 32483

3:4:5Dz򤭤ޤ
äʣʤΤʤȻפäƤ顢
ճˤʤ򤱤ޤ
ŨǤ͡
73ڡ 4:54:27 32484
abcba@moka
ʿԤȤȳ٤δط顢ACBDľԤľ˲ꡢλ3:4:5ϸƤޤ432(2/5)=5/12ȤήǤ


AD=BD=n,AC=(n+1)(n-1)/2λ,ѷABCѤn(n+1)(n-1)^3/4(n^2+1)


AD=BD=n,AC=(n+2)(n-2)/2λ,ѷABCѤn(n+2)(n-2)^3/8(n^2+4)
Ȥʤޤ
73ڡ 9:43:09 32485
uchinyan
Ϥˤϡơϡ
345 ľѻѷ򸫤ĤƲ򤭤ޤĤ̤βˡפդޤ

(ˡ1)
ޤAD//BC ADB = DBC = 2 * BAC ǡAD = BD ʤΤ ABD = (180 - ADB)/2 = 90 - BAC Ǥ
ǡAPB = 180 - BAC - ABD = 180 - BAC - (90 - BAC) = 90롤ĤޤꡤACBD ˤʤޤ
ˡAD//BC ʤΤ BAD = CAD ǡBDAC = 34 ꡤ줾λѷι⤵APDP ϡAPDP = 43 ˤʤޤ
ǡAPD 345 ľѻѷǤ
ꡤADDP = 3DP = 53DP = 9/5 cmBP = BD - DP = 3 - 9/5 = 6/5 cm ʤΤǡ
ABC = AC * BP * 1/2 = 4 * 6/5 * 1/2 = 12/5 cm^2 ˤʤޤ

(ˡ2)
ACBD ޤǤϡ(ˡ1)ƱǤ
ˡC BD ʿԤ AD D ؤαĹȤθ E Ȥޤ
AE//BC DBCE ʿԻշʤΤ CE = BD = 3 cm Ǥ
ޤACE = APD = 90ʤΤ APD ACE ˤʤꡤ⡤ACEAPD ϶ 345 ľѻѷǤ
ϡ(ˡ1)ƱǤ
ͥνȡ 73ڡ 11:02:01 MAIL:uchi@sco.bekkoame.ne.jp 32486
ϥ饮㡼ƥ
٤ʤޤ

ѴؿǤMathematicaǤ
73ڡ 11:28:49 HomePage:湩ؤ˥32487
ӣˣ
ACʿԤʬD̤褦˰ơ椫62/512/5ȤȤǤ褤ΤǤ͡3:4:5ACBDȤơ
73ڡ 11:34:00 32488
uchinyan
ǼĤɤߤޤɡ345 ľѻѷɤĤ뤫Τ褦Ǥ

#32468#32469#32476#32480
#32468ɩAPBDȤʤPCBαĹˤȤäƻѷAPC(3դ3,4,5)äPB:BC=3:2
ȤˡP E Ȥδְ㤤Ǥ礦¿𤷤Ƥ롥
ACBD ȤФǤ
#32476Ǥ͡

#32470#32471¿ʬ#32475
#32486(ˡ2)ȼ¼Ʊ

#32473
£äαĹ //ģ ʤŤȤ
ȤˡABC = BC * (D BC ؤο) * 1/2 ȤƤޤ

#32474
гľǡʿԤʤΤAP:PD椬гȤȤ3:4:5Фޤ
Ȥˡܺ٤ˤϡ¾βˡȽŤʤ褦˻פޤ

#32478
ʬAB򼴤˻ѷABCޤ֤3:4:5λѷAC'Dλѷ
ѤƲ򤭤ޤ
Ȥˡ٤δط顤C'AD = 90롤DBC' Ʊľˤޤ͡줬ݥȤʡ

#32479
¤̤äʿƣޤ

гľ򤹤Τ˵Ťִ֤ˣ򤱤ˤʤޤ
ȤˡAD ȤθͤACBD ȤΤʡ

#32482
A鲼AE=4ѤȤʤ
Ȥˡ
䤳ʤפĤΤϤ̣ס
ΤݤǤ¤ϡ#32478ˤʤ褦Ǥ

#32467#32483#32484#32485
ܺ٤Ϥ褯ʬޤ󤬡345 ľѻѷȤäƤ褦Ǥ
ʤ#32485

AD=BD=n,AC=(n+1)(n-1)/2λ,ѷABCѤn(n+1)(n-1)^3/4(n^2+1)
OK

AD=BD=n,AC=(n+2)(n-2)/2λ,ѷABCѤn(n+2)(n-2)^3/8(n^2+4)
AC=(n+2)(n-2)/4 Ǥ礦ʤOKʡ

#32486
βˡ

#32487
Ѵؿ

#32488
ACʿԤʬD̤褦˰ơ椫62/512/5ȤȤǤ褤ΤǤ͡3:4:5ACBDȤơ
ȤˡBC = 2 cm ᡤ4 * 3 * 1/2 * 2/5 = 12/5 cm^2 Ǥ礦
ͥνȡ 73ڡ 17:13:54 MAIL:uchi@sco.bekkoame.ne.jp 32489
DS4
>uchiyan
ƵŤޤPޤƤΤǤ͡
ʸ񤤤Ƥޤ餤ޤ
73ڡ 14:33:17 32490
abcba@moka
#32485,#32489
ߤޤ󡣥ԥڤκȤǽ񤭴ְ㤨ޤ
AC=(n+2)(n-2)/2ǤʤAC=(n+2)(n-2)/4ǤuchinyanŦ꤬Ȥޤ
73ڡ 14:56:29 32491
ԡ
ƻ򤱤ޤ
73ڡ 18:28:46 32492

ԡ
ver3顢Ĥˡ
74ʶ 6:36:41 32493
ԡ
Ǥïơ
74ʶ 13:28:43 32494

ܤǤ
Ф(ToT)
椬ȡ 74ʶ 14:04:50 MAIL:http://wwwa.dcns.ne.jp/~orienteering/link1-form.html餪ꤤޤ HomePage:32495

裲󽪤ޤ
⤦ѤǤ
74ʶ 15:07:44 32496
Ф
䡣Ǥ͡Фäơ
ˤϻⲿˤʤ
ߤʤǤ
75ڡ 7:44:54 32497

˻ʣԡԡ
Ϣ³̲ޤǤʤޤޤ
줫ǥοŪŤŤʤ顢
֣֤Ǥɡ֡
ҥȤʤ
ѡšġˤ衣ʣԡԡ
칻ʹ˹Ԥʡ
ʵ㤭
ļˡ 76 3:58:07 32499

̾ŲʡŷͳǼء
򣲲
ޥʡǰȻפ䡢ޤʤۤǤ
ϡ֤Ͽ桢֤ǡĤäѤ졢ǡԥԡɤǤĤäѤ졣
ĤĤޤ
θ٤οͤ˶ޤ
ļˡ 76 4:16:36 32500

ؽ
ημ䡣
Ⱦ黻ˤĤĤƤ˺Ƥޤ
ǡSaSϡ餫Ǥ͡ʴ
ǤޤΤǡ⤦ŦѤߤǤ礦ɡ
Ǥ⡢פФƤơͭ񤦤ޤm(__)m
٤ϥǥԴοŪšŪȤܤ
ޤ󤫤ȡ˾񤤤ơطʤ
ʤ<(__)>
ļˡ 78ʲС 8:57:07 32501