٥륯åĥ
դȹ⤵ΤǢãơᢤãšʬãĤĤƱ
62ڡ 0:16:46 44538
baLLjugglermoka
ϵ٤ߤȻפäƤ餤Ĥδ֤ˤƤꥢ륿Υߥƨ(^^;
62ڡ 0:18:44 44539
⡼ޥ
ƱǤ ^^
¨ ^^;v 62ڡ 0:18:45 44540

гAC//гEFʤΤǡAEFȢCEFѡ颤HEFƤѡǤ͡
62ڡ 0:19:17 44541
ǯ
AC٤СACFȭACEƱѡƱACHƱ18cm2
ACEȭACF϶ (1/2)ABCDΰաECFGΰա
#44538٥륯åĥƱǤ
礭žƤƤΩޤ͡

62ڡ 0:50:35 44542
ߤ
礭ʤɤ˾郎ʤΤǡϣĤȤƱ礭
äƤȤˤƲ򤭤ޤʤߤü첽äƤȤǤ͡
62ڡ 0:23:21 44543
Mr.ǥ
ϡɤƤ
EBCᢤFDCˡܤäƤޤޤȤޤǤʤäǤ͡
#44538 Τ褦˹ͤޤEF//ACѤƤ⤤Ǥ͡
62ڡ 0:27:42 44544
⡼ޥ
#44544
EF//AC ʤۤɤǤä
¨ ^^;v 62ڡ 0:35:11 44545
鯤ο
ˤ׻ƤΤ٤㤤ޤ

ABaEC=bȤȡ
AHD梤FHCʤΤǡ
AHD(AD/CF)^2ߢHCF(a/b)^2ߢHCF

HD=CD(a/(a+b))a^2/(a+b)
CH=CD(b/(a+b))ab/(a+b)
EH=EC-HC=b-ab/(a+b)=b^2/(a+b)

AHEᢤAHD(EH/HD)(a/b)^2ߢHCFb^2/(a+b)a^2/(a+b)
ᢤHCF1
18
//
62ڡ 0:35:13 44546
Ȥ
ɸA(-a,a),B(-a,0),C(0,0),D(a,a),E(0,b),F(b,0),G(b,b)Ȥ
ľAF:y=-a*(x-b)/(a+b) x=0ȤH(0,a*b/(a+b))
HCF=a*b^2/(a+b)=36 a*b^2=36*(a+b) a*b^2-36*a=36*b a=36*b/(b^2-36) Hyɸ
a*b/(a+b)=36*b^2/((b^2-36)*(36*b/(b^2-36)+b))=36*b^2/(36*b+b^3-36*b)=36*b^2/b^3=36/b
EAH=EH(=b-36/b)*a(=36*b/(b^2-36))/2=(b-36/b)*18*b/(b^2-36)=18*(b^2-36)/(b^2-36)=18()
˭ԡ 62ڡ 1:21:12 44547
ˤ
ʤιפʤ׻ޤOrz
62ڡ 8:01:47 MAIL:nikotan@fat.coara.or.jp 44548
̤ꤹ1
¤Ǥ((
ͤEF//ACꡢAEHHCF18cm^2
ȽФޤ
Ūˤ#44543ɤȻפޤ
˰³ñǤ
񡡡 62ڡ 8:06:50 44549
̤ꤹ1
µˤޤơϳع٤ߤǤ
Ȥꤢͤ6ǯκä겼Ȥޤ򤱤顢˾¾Τ겼ޤ
:ͳѷABCDꡢA120롢B70롢C130롢D40롢ABACƤޤΤȤCDBEȤʤ褦DCEȤȡBEDϲǤ

񡡡 62ڡ 8:47:40 44550
Ϸ
ȣŤȢãȣƤƱǤ͡
äƻѷͤޤ

ѥ󤬥ɥ˾üޤ
̡󥿡ͥåȤĤʤ餺Σᤷޤ
ޤץ󥿡ȤʤʤäΤǡ̵ͭѹޤ
Ȥ̾ϿäƤޤΤǡϿȤʤޤΤǡκϿ̾ϷʼפϷ͡פѹޤ
ʡ 62ڡ 8:47:26 44553
ϥ饮㡼ƥ
Ϥ褦ޤ

Ǥ
62ڡ 9:13:41 HomePage:湩ؤ˥44554
Ƥ餷
⤵ƱչƱǻѷƱˤʤ뤫鶦ʬƤƱ
ȤʳФʤʤΤƤʤñȡ
62ڡ 9:24:53 44555
uchinyan
Ϥˤϡơϡ
ϴñǤ͡ȤƤʸʤפǤ礦̤ξǤٶƤв򤱤
ʲˡꤽǤ˻פդΤ򣵤Ĥۤɡʴǡ

(ˡ1)
ABCDECFG ACB = 45= EFCAC//EFEAC = FAC
AHE = EAC - HAC = FAC - HAC = HCF = 18 cm^2
ˤʤޤ
Ʊ褦ʤΤǤ
AHE = AEF - HEF = DEF - HEF = HCF = 18 cm^2
Ǥ⤤Ǥ͡

(ˡ2)
ABCDECFG EAC = EBC = FDC = FAC
AHE = EAC - HAC = FAC - HAC = HCF = 18 cm^2
ˤʤޤ

(ˡ3)
ABCDECFG EAC = EC * AD * 1/2 = CF * AB * 1/2 = FAC
AHE = EAC - HAC = FAC - HAC = HCF = 18 cm^2
ˤʤޤ

(ˡ4)ü첽
ABCD ECFG ƱˤȡD E ϰפH EC ˤʤΤǡ
AHE = HCF = 18 cm^2
ˤʤޤ

(ˡ5)Ͽ
ABCDECFG Ǥ줾ΰդĹ ab Ȥȡ
BF//ADADH FCHHDHC = ADFC = abHC = ab/(a + b)EH = EC - CH = b^2/(a + b)
AHE = EH * AD * 1/2 = ab^2/(2(a + b)) = CF * HC * 1/2 =HCF = 18 cm^2
ˤʤޤ

ޤޤꤽǤ͡
62ڡ 12:14:32 44556
̤ꤹ1
ˡͤΤ򤤤Ǥ^_^
񡡡 62ڡ 12:33:13 44557
uchinyan
ǼĤɤߤޤ


ʲεҤϡ⤽ϻ伫ȤٶΥ˲᤮ʤΤǤ
޳ѤʤΤǤͤޤǤˤȻפäƸΤǤ
Ȥ⤢äơˡʬϻ F.A.Q. ΡֻϰϡפεҤ򻲹ͤˡ
ĿͤǤиǼŪ˹ԤäƤΤǤäơҴŪʤΤǤϤޤ
ޤǤ⤴ͤǤ餺

#44538#44540(¿ʬ)#44542#44544#44553#44556(ˡ3)
ACE ACF ABCD ΰդ ECFG ΰդ⤵դˤ뻰ѷʤΤ ACE = ACFȤˡ

#44541#44544#44549#44556(ˡ1)
AC//EF ACE = ACFAEF = CEF ˤʤ뤳ȤȤˡ

#44543#44556(ˡ4)
ü첽ˤˡ

#44555
⤵ƱչƱǻѷƱˤʤ뤫鶦ʬƤƱ
Ȥˡܺ٤Ϥ褯ʬޤ󤬡ABF = ABCE ȤäƤΤʡ

#44556(ˡ2)
EAC = EBC = FDC = FAC Ȥˡ

#44546#44547#44548#44554#44556(ˡ5)
ؤˤˡ
62ڡ 13:15:12 44558
̤ꤹ1
ĤǤˤ⤦ĻפĤΤ겼
:30롢60롢90ȤѴطƤ뻰ѷABCƱ򤷤4ĤλѷʬޤΤȤʬϲ̤ꤢޤ4Ĥλѷ礭äƤ褤ΤȤޤ
񡡡 62ڡ 15:23:04 44559
uchinyan
#44550
ɤʤʤ褦ʤΤǡ괺
BEC = 20롤BED = 160롤ʡ
62ڡ 16:05:18 44560
̤ꤹ1
#44560
ήФǤ͡
񡡡 62ڡ 16:20:31 44561
2N.K.
javascript:comment('44550')
ʤˤ겼Ʋm(__)m
62ڡ 23:08:10 44562

#44550
62ڡ 23:14:41 44563
ˤ⡼
٤Фʤ顣Żǿε³Ƥʴ
˥äȲ򤱤ơûʤ̲ǤǤ
ţƤȣäʿԤʤΤǡţƤȢãƤƱѡ
ξԤζʬ΢ţȣƤ顢ȣãơʡ18㎠ˤȢȣŤƱ
äƢȣŤ18㎠
޻Ա¶ʼΡˡ 63ʶ 1:35:55 44564

ФǤAC//EF͡
63ʶ 7:50:43 HomePage:44565
Goosehousenofan
ɸȤƹͤơɸ򤷤Ʋ򤭤ޤ
63ʶ 13:17:29 44566
̤ꤹ1
#44562
狼ޤǤ겼ޤ
:뻰ѷABCޤλѷˡADDBACCDȤʤ褦DȤȡADB160롢ACD40ȤʤޤΤȤDBCϲǤ
(Ѥ)

񡡡 63ʶ 21:07:35 44567
2N.K.
#44567
ꤢ꤬Ȥޤ(^O^)
ʤߤˡʸϤǤäƤޤ
?????????????????????????????????????????????????? 622ʿ 20:03:40 44568
̤ꤹ1
#44568
ְ㤨Ƥޤޤ
Ƥޤ
񡡡 63ʶ 21:08:15 44569
2N.K.
꤬Ȥޤ(^O^)
DBC30Ǥ礦
ADβѷäƹͤޤ
ɡ 63ʶ 21:21:24 44571
̤ꤹ1
Ǥ
񡡡 63ʶ 22:23:17 44572
2N.K.
ɤǤ͡
ͤʤΤǡۥȤȻפޤ
줫֤Сޤ겼Ʋʡݡ
ɡ 63ʶ 22:31:53 44573
̤ꤹ1
Free Talk˾ܤƤ줫餽겼ƤۤɤǤ͡
Ǥϳμ⤫ʤȻפޤơ
񡡡 63ʶ 22:44:56 44574
̤ꤹ1
λǤ
Ǥϼ괺겼Ƥޤ
٤ˤɤ^_^
񡡡 64ڡ 7:46:37 44576
ä
ΣդĹ򡢾a礭bȤƷ׻顢
ɤ ab^2/(2(a+b)) Ȥʤ뤳ȤʬäΤǡ
׻򤷤ʤƤ⤤ˡõơ

гˡ⤢ȤפĤޤ
ǽ˻פĤΤϡҤΡȰˤʤɤȤäơ
礭Ʊ˵Ǥ

礭ƱǤȤȡΤϣĹ
AFϤгˤʤꡢEDŤʤΤǢAHDȢHCF

ʤäơɤʤǤ礦
66ʷ 10:17:27 44577
̤ꤹ1
#44577
Ȼפޤ^_^
񡡡 66ʷ 16:44:12 44578
ߡ
Ȥ̤˹Ԥʤü첽ϼʼʡ
äȸʤ麣ľָƱ18פˤʤ롣
67ʲС 17:38:06 44579
ߤ
#44577ˤä
ü첽ˤˡ
Ǥ֥סΤߤǤ֥פǤ礦

Ǥв륿פλȤޤޤ͡
ФʤϥޥǤ
67ʲС 19:17:06 44580
̤ꤹ1
ޤΤü첽ϱϰϤǤ͡
񡡡 68ʿ 18:15:39 44581