٥륯åĥ
ѷѤ¤180٤ʤΤǡBECBAEBCEľѤˤʤΤdzADEľѡ
ʻѷбդΤBC64/9
BCAEĹFȤȡBF=9AD=FCʤƱʻѷǤ뤿
AD=FC9-64/917/9

ԥݤʤΤǤ־άƤޤޤʬǤ礦
72ڡ 0:13:22 43427
!!!
ú
ADEE濴180ٲž
͡ 72ڡ 0:17:40 43428
Mr.ǥ
ľAEľBCθFȤ
EDAᢤEFCEBF=CEFBEF=90
FBEᢤABE
ECB=90롡EBC梤FBE
AD=FC=ȤȢ988(9-x)
򤤤ơ17/9Ȥޤ
72ڡ 8:51:25 43429
ܥ饮ΡԾͻ
22ʬDz򤱤餹Ǥ͡
72ڡ 0:35:10 43430
Ȥ
ED=ECȤ郎ʤƤǤޤ¿Ǥ͡
ɸB(0,0),E(8,0),A(8,sqrt(17))ȤľAD,EDθỰʿAD
XMaxima

part(solve([y=8*sqrt(17)*(x-8)/17,y=-sqrt(17)*(x-8)/8+sqrt(17)],[x,y]),1)$
sqrt(expand((rhs(part(%o1,1))-8)^2+(rhs(part(%o1,2))-sqrt(17))^2));17/9()
˭ԡ 72ڡ 0:39:52 MAIL:fttnm528@ybb.ne.jp 43431
⡼ޥ
ä!!
#43429Mr.ǥ...
9:8=8:(9-x) С͡

錄
狼顢BCľCDȤ狼Τǡܸ
Ȥϡȥԥ饹 ^^;
z/(8/9)x=(8/9)x/(64/9)
z=(8/9)^2*x^2*(64/9)
x^2=9^2-8^2=17
so

z=17/9
äƤʤȤǡĻʤȡOrz...
¨ ^^;v 72ڡ 0:41:11 43432
ǯ
ܣ£šܣģŤޤȽäƤʤ顢ܣģŤľѤǤ뤳Ȥ˵դΤ٤줿ܥƤ褦Ǥ
ȤϡʿͶǤ줽ˤʤʤ顢ʤȤ #43429 Mr.ǥƱ褦...
ʸϡֲοޡפǤϤʤ־οޡפǤ͡;ռʤȤǤ...
72ڡ 1:01:16 43433

ģŤȣŤоΤʢƣãŤȡʿƱ¦Ѥ¤ϣʤΤǡܣţģܢܣţã¡ܣţãơܢܣţã¡ܣ£ãơᣱȤʤꡢ£äȣãƤϰľˤʤ롣
äơ£Ŷ̡ܣ£šܣƣ£šܣţ¡ܣƣţ¡᣹ꢤ£Ţᢤƣ£š£ơ᣹
ޤ
ܣţƣö̡ܣƣ£šܣƣţäꢤƣ£Ţ梤ƣţáäƢܣţãơ᣹
ţã¤ܣţ£ö̡ܣţã¡ܣƣţ¡᣹ꢤţ£â梤ƣ£
£á£š£á᣸£š£Ƥ£á᣶
äƣġãơ£ơݣ£á᣹ݣᣱȤʤޤ
ʤߤʤ󡢤äƤΤˡ˷礱ʤ
Ϻꡡ 72ڡ 1:18:41 43434

ؤʡ
72ڡ 2:42:25 HomePage:ۡ43435
ȤޤԤ
ѷABEޤ֤ȡ΢֤δطФ롣ΤȤ
AE:ED98ޤcosAED8/9AE=17ʤΤǡ
ѷAED;ȤȤǤ롣׻AD=17/9

ʾ塢̣ʲǤ
72ڡ 4:07:16 43436
ϥ饮㡼ƥ
Ϥ褦ޤ

ѴؿǤAEĹޤ
72ڡ 5:03:22 HomePage:湩ؤ˥43437
ۤ
ʿȤޤ
72ڡ 5:38:37 43438
ϺĹ
ȯλ񤭹ߡ
Mr.ǥƱǤ򤷤
72ڡ 10:47:32 43439
uchinyan
Ϥˤϡơϡ
ʿ̿޷ϲפ֤ʵޤȤƤɸŪȤפᡤʡڤ򤭤ޤ
ʴ

(ˡ1)
ADBE Ĺθ F Ȥޤ
ޤAD//BCAFB = CBF = CBE = ABE = ABFAEBFABE AFEꡤ
ABF AB = AF ջѷAF = AB = 9 cmEF = EB = 8 cmǤ
ơEFD = ABEFED = 180- AED - AEB = 180- ABE - 90= 90- ABE = BAEꡤ
EFD ABEFDEF = BEABFD8 = 89FD = 64/9 cmʤΤǡ
AD = AF - FD = 9 - 64/9 = 17/9 cmˤʤޤ
ʤߤˡ嵭ǤϡED = ECϻȤäƤޤ󤬡EFD ᢤEBC ΤǡƳ̷⤷ޤ

(ˡ2)
E AB ˿򲼤­ H ȤޤAEB = 90ꡤBEH EAH BAE Ǥ
ޤEBC = EBHBEC = 180- AED - AEB = 180- ABE - 90= 90- EBH = BEHꡤ
BEC BEHBCE = BHE = 90롤BC = BHǤ
ˡAEH = ABE = AEDAHE = 90= BCE = ADEꡤAEH ᢤAEDAH = ADǤ
ǡAD + BC = AH + BH = AB = 9 cmǤ
ơBEC BEHBEH BAEꡤBEC BAEʤΤǡ
BCBE = BEBABC8 = 89BC = 64/9 cmAD = AB - BC = 9 - 64/9 = 17/9 cmˤʤޤ
ʤߤˡ嵭ǤϡED = ECϻȤäƤޤ󤬡BEC BEHAEH ᢤAEDΤǡƳ̷⤷ޤ

(ˡ1)ˤϡ
AE BC Ĺ롤
BCE E βȿײ˲ž EC ED ˽Ťͤ롤
ADE E β˻ײ˲ž ED EC ˽Ťͤ롤
BAE BE ˴ؤޤ֤
ABE AE ˴ؤޤ֤
ABCD E β 180ž롤
ʤɤʤɡĤΥХꥨ󤬤ޤطʤˤϤҤޤ͡

ʤȤϴطޤ󤬡(ˡ2)ƩƸޤ
ΡȾʬȤäơʿѤο޷Ūʰ̣ϾͤȤޤ
ΰ̣ǡˤȤäƤϲޤǤ⤢ޤ

ȡED = EC ϻȤ鷺˲򤱤Τǡ̷Ϥޤ󤬾¿ˤʤäƤޤ
ˤĤƤ#43441
ͥνȡ 73ʶ 11:48:45 43440
uchinyan
ǼĤɤߤޤ
ȤƤϰפᤫʡȻפäΤǤؤDz򤤤Ƥ빽褦Ǥ

#43427
ADDC ڤ BCDC ˴Ť AE BC Ĺƹͤˡ

#43428#43434
ADE E β˻ײ˲ž ED EC ˽Ťͤƹͤˡ

#43429#43433#43439
AE BC Ĺƹͤˡ

#43440(ˡ1)
BE AD Ĺƹͤˡ

#43440(ˡ2)
E AB ˿򲼤ƹͤˡ

#43431#43432#43436#43437#43438
ؤˤˡ

ʤ
#43431
ED=ECȤ郎ʤƤǤޤ¿Ǥ͡
äꤷƤƵդޤǤΤˤΤ褦Ǥ
#43440ED = EC Ȥʤˡ˽񤭴Ƥޤ
¾ä˻ŦϤʤΤǤβˡǤ⡤ƱͤʤΤȻפޤ

θ塤⤦ƤƤߤޤ

ɤ顤AD//BCĤޤ ABCD Ȥơ
ED = ECABE = CBEAEB = 90롤Τ줫ĤлĤΰĤƳ褦Ǥ
AED = ABE AED = CBEϤɤξǤɬפʤ褦Ǥ
ϡ#43440˾񤤤طʤˤҤ뤳ȡݥȤΤ褦Ǥ

¿Ǥ̷ϤʤΤϤޤ󡣤षͤ䤹ʤäƤȻפޤ
ʸή줫餹ȡAEB = 90롤̵Ƥ褫äʡȤϤƤޤ
ͥνȡ 73ʶ 11:50:40 43441
ʸ
ϡ
72ڡ 18:27:53 43442
٥륯åĥ
Τ˾¿Ǥ͡ǹͤƤED = ECϽФƤޤ

ƱϻϰϤǤFAQȡ
72ڡ 21:12:52 43443
Goosehouse
عǡGoose house ⹥ޤ󤫡
73ʶ 2:48:35 43444
ʪ
ϡǤ
Ǥ⡢䤬¿Ѥԥ饹ϿؤǤ
73ʶ 19:50:31 MAIL:butsuri.0523@gmail.com HomePage:äƤߤ43445
ʪ
ΥĥåΥȤǤ
@butsuri_0523Ĵ٤Ʋ
ճʰ̤ФƤΤǡʤDz()
73ʶ 20:02:00 MAIL:butsuri.0523@gmail.com HomePage:äƤߤ43446
ʪ
Ϥ곧󡢢17ȤäƤޤ͡
Ȥäƶ(?)򤭤ޤ
73ʶ 20:04:30 MAIL:butsuri.0523@gmail.com HomePage:äƤߤ43447
ʪ
󥯥ƥȤޤ
https://docs.google.com/forms/d/1ca60s9f6FIgEtIrwksxUFNuBlq0zv ydMXutG3BSwrg4/viewform
73ʶ 20:05:17 MAIL:butsuri.0523@gmail.com HomePage:äƤߤ43448
ʪ
ڡä꤯Ԥޤ
https://docs.google.com/forms/d/1ca60s9f6FIgEtIrwksxUFNuBlq0zvydMXutG3BSwrg4/viewform
73ʶ 20:08:20 MAIL:butsuri.0523@gmail.com HomePage:äƤߤ43449
a
D C١
AE=17
ִݤγ٤ȤȤ
sin=17/9
AD=AE sin = 17/9
73ʶ 20:42:52 43450
Ϸʼ
β򸫤ʤפĤޤ
ܣ£šܢܣ£š᣹
ܣ£ţáܣ£šܣ£ãš᣹Ȥʤ
äƢܣģš᣹ܣţ¡ܣ£
ţĤŤޤ֤ĤΰưƤȤ
£Ţ梤£ƣŤȤʤꡢȤ
ʡ 74ڡ 16:49:04 43451
ޤ
ϤϻʿǵޤŪ˲򤭤ƺƹ͡
̣ŤαĹȣ£äαĹ˹Ԥ夭ޤƤȤȢ£Ƥջѷ£á᣶£ơ᣹꣹ݣᣱ
77ʲС 16:14:35 43452