졩ѥʤƤޤ衣
ҤäȤΤޤޤʡ
ȤȤǡФ餯˴ؤ񤭹ߤϼͤޤ
ޡ 610ڡ 0:18:06 36322
ߤ
졢ѥɤѹƤʤ
610ڡ 0:18:09 36323
Ҥ
߸̤Τ褦ʵϤɤɤƱ߸̤ˤʤ뤫褯狼ޤǤ
610ڡ 0:24:32 36324
cyclone
㡢ѥѹߥǤ
԰˺ܤäΤʤƾǤޤ(^^;
610ڡ 0:33:45 36325
Ҥ
߸̤Τ褦ʵϤɤɤƱ߸̤ˤʤ뤫褯狼ޤǤ
610ڡ 0:40:46 36326
die neue Frau
ϡ5:4:3λѷǤ
ʤΤǡդǤ1525ޤǤ1ľΤդ
θϡ߸̤
ξľ¤314ܤ4ʬ1ˤʤ
줬4åȤ
ľ3α߼4ˤʤ뤫
331441342
Ǥ⡢䡢ɤȾ1α߼34Ĥˤ
Ǵʤ
ϾγڱǤʤʡ 610ڡ 0:47:21 MAIL:jjyhr530@yahoo.co.jp 36328
fumio
Фϡ褤轵ϽˣǰǤ͡
Ǥϡ700פǤꤤޤϤϤϡ
奪ե߳ڤߤˤƤޤǤϤޤ
610ڡ 0:56:17 36329
abcba@jugglermoka
#36328ƱˡǤ
610ڡ 1:04:47 36330
cha
Υѥɤ줿
36328ο͡񤯤ʤƥᤸʤ
äȻפ
610ڡ 1:06:00 36331
ߡ
夫鸫顤վưĹ

Ĥޤľȱ߸̡

ҤӤΣ̡
610ڡ 1:09:38 MAIL:amimorisama@hotmail.com 36333
ͣ.ǥ
#36328 ƱǤʤȤ줷ʤȤ
߼Ψ3.14ȤͤɽΥҥȤˤʤޤ͡
610ڡ 1:31:42 36334

äƤΤ͡
ǼĤʤäΤǡȻפäƤޤ
ꤷƤƤ
610ڡ 1:40:36 36335
Ȥ
ɸǤдñǤʲβˡˤʤޤ

褺P,QƱʿ̤ΤȤMεפ1줬4̤4(1)
Ʊʿ̤ǤʤȤP(t,0,4),Q(4,s,0)Ȥ2εΥ5(t-4)^2+s^2+16=25
tˤĤƲ򤯤t=4-sqrt(9-s^2)ꡡκɸP(4-sqrt(9-s^2),0,4),Q(4,s,0)
M(4-sqrt(9-s^2)/2,s/2,2)ǡx=4-sqrt(9-s^2)/2,y=s/2Ȥ
Ȥμա2褷ơy^2=s^2/4ꡡs^2=4*y^2
μx=4-sqrt(9-4*y^2)/2ꡡsqrt(9-4*y^2)/2=4-xꡡsqrt(9-4*y^2)=2*(4-x)
ա2褷ơ9-4*y^2=4*(16-8*x+x^2)ꡡա4dzäơ9/4-y^2=16-8*x+x^2
x^2-8*x+y^2+55/4=0ꡡ(x-4)^2+y^2-64/4+55/4=0ꡡ(x-4)^2+y^2-9/4=0ꡡ(x-4)^2+y^2=(3/2)^2
4ʬߤȾ3/2αߤ濴(4,0)P,QƱʿ̤ΤȤˤĤʤ
Τ2*(3/2)*3.14=9.42(1)­ơ4+9.42=13.42()
˭ԡ 610ڡ 1:59:04 MAIL:fttnm528@ybb.ne.jp 36336
ƽȯ
36324 & 6
ͱƤƣ'ľ(Ƥʤ)֤ջѷΰդ(Ⱦ)
610ڡ 2:28:38 36337
uchinyan
Ϥˤϡơϡ
ȤȤθȡ޷ʤꤵƤޤΤǴǤ򤱤㤤Ǥ
ޤʴDz򤭤ޤ

QM ʿABCD ˲­ RN Ȥޤ
P ʿABCD վQ ʿEFGH վʤΤ RN ʿABCD վˤޤ
ˡPQR ϡPRQ = 90롤PQ = 5 cmQR = AE = 4 cm ʤΤ 345 ľѻѷǡ PR = 3 cm Ǥ
ơM PQ ꡤN PR PN = RN = 3/2 cm Ǥ
ޤMN = 4/2 = 2 cm = ꡤMNʿABCD ʤΤǡM ޷ N ޷ȤƱƱˤʤޤ
ǡϡ
ABCD վ PR PR = 3 cm Ȥʤʬ PR N ޷Ĺ
Ʊˤʤޤ
פˡΩΤ夫鸫Ȥ ʿABCD ˸롿ǤΤͤФȤȤǤ͡
ΤȤPR ABCD ΰĤվˤ뤫PR ۤʤվˤ뤫Ĥβǽޤ
PR ABCD ΰĤվˤȤ
㤨 AB ˤȤȡN ޷ϡAN = 3/2 cm 5/2 cm (= 4 - 3/2) ʬǡϰϤ 5/2 - 3/2 = 1 cm Ǥ
¾դǤƱʤΤǡξιפϡ1 * 4 = 4 cm Ǥ
PR ABCD ΰۤʤվˤȤ
Ĺδط顤ABCD γĺϤ٤礦վ夷ꤨޤ
ǡ㤨СP AB 塤Q BC ˤȤȡPBR PBR = 90ľѻѷǤ
ǡN BC ʿԤ PB Ȥθ S ȤȡPSN = PBR = 90ǡ
ޤ PSN PBR PSSB = PNNR = 11PS = SB ȤʤꡤPNS BNSPN = BN Ǥ
ĤޤꡤBN = PN = RN = 3/2 cm ǡN ޷ϡB 濴ȤȾ 3/2 cm αߤ 1/4 Ǥ
¾ĺμǤƱʤΤǡ碌ȡN ޷ϡȾ 3/2 cm αߤˤʤޤ
ǡĹϡ3/2 * 2 * 3.14 = 9.42 cm Ǥ
ʾǤ٤ƤʤΤǡפơ
M ޷Ĺ = N ޷Ĺ = 4 + 9.42 = 13.42 cm
ˤʤޤ

äǫ˽񤤤ƤĹˤʤޤ (^^;
ͥνȡ 610ڡ 12:40:44 MAIL:uchi@sco.bekkoame.ne.jp 36338
uchinyan
ǼĤɤߤޤ

ԷǼĤΥѥߥäܺ٤ʽ񤭹ߤϤޤꤢޤ󤬡
ŪˤϳƱǡ#36328#36333#36337#36338ʤɤȤäȤǤ礦
#36336οزˡƱȤǤ͡
ʤ#36338Ǥ ʿABCD ˼ͱƤޤɤ֤Ƥߤȡ
M ̤ ʿABCD ʿԤʿ̤˼ͱƤʬ䤹⤷ʤʡȻפޤ

褤輡ϣǤ͡
ɤʤˤŦʤäƤ褦ˡ奪եߤϡˣǰѡƥˤʤꤽǤ ^^/
ͥνȡ 610ڡ 12:45:17 MAIL:uchi@sco.bekkoame.ne.jp 36339
die neue Frau
ưޤ
700Ǥ
700ˤˤʤΤǤ
⡢С
ϾγڱǤʤʡ 610ڡ 14:43:28 MAIL:jjyhr530@yahoo.co.jp 36340
ɡɤ
ޤھǤ
611ʶ 21:46:52 MAIL:doragonball3000@yahoo.co.jp 36341
ɡǤ
ͧãϤޤ
612ڡ 9:21:36 36342
⤵Ф
ϳھǤ
614ʷ 8:25:28 36343
Ƴ
⤤ȤʬäꤷޤȾɡ夬ФƤޤͤǹǤ
615ʲС 13:26:25 36344