ǽդĹ6cmȲꤷޤޤ֣פäƤޤäorz
̤̪ 69ڡ 0:06:25 MAIL:ishizaki@qa.so-net.ne.jp 25222
taku
פ֤˴㤨Ƥ
ޤߤ
69ڡ 0:08:46 MAIL:takuo@kcv.ne.jp 25223
Ϥʤ
⡢ʬǡ֣פȲʤǰ㤦äƤäǺǤޤ

(|||)

ä礳礤褯ʤǤ

ƣĤȣ£Ťޤ֤ȤԤäʤΤǡ줫顢
£šܣƣġᣵΣ
ƣġݣ£šᣱ

줫ƣġᣳ£šᣲ

λθĤΤǡ֣פȲȤĤäƥꥴꡣ

ȡ硡 69ڡ 0:10:44 HomePage:http://hanau.daa.jp/blog2/25224
ߤ
գƤ֤ޤ񤤤Ƥ򤱤ߤġ
Ϳ줿ޤǤ蘆줺ˤȿޤ񤤤Τ
69ڡ 0:16:21 25225
Ҥܤ
ޤ֤ơդϤ٤Ƶ줿ΤΡ
ѷAEFѤȤǡ׻ߥ
Υߥ˵Ť⡢٤ϻѷAPOѤǤ׻ߥ
ܤƤȤۤۡ
69ڡ 0:17:46 25226

⤦Ǥm(_ _)m

ȹơīλη̤Τʤäꤷޤ:-)
69ڡ 0:21:20 25227
CRYING DOLPHIN
УѣҤȢţƣä
£ѡѣҡУҡУ
£ġ᣶cm

1.5221.5
Ȥޤ줿

ԤꤹˡõȤ
ť¤ȤäƤޤä褦Ǥ
ǯԥ奦ȡ 69ڡ 0:33:47 HomePage:θ³äƤɤΤ餤25228
ޥ
𤷤ޤɥå׽о᤿Ǥ͡(^^;;
PowerBook G4 69ڡ 0:53:47 MAIL:masaru-y@sansu.org HomePage:25229
ߤᤳ
http://mediaserver.hp.infoseek.co.jp/source/up1604.jpg
http://mediaserver.hp.infoseek.co.jp/source/up1602.jpg
69ڡ 1:57:00 25230
ߤᤳ
http://mediaserver.hp.infoseek.co.jp/source/up1604.jpg
http://mediaserver.hp.infoseek.co.jp/source/up1602.jpg
69ڡ 2:00:01 25231
Ȥ
ͤɸˤ⤳ʻ֤ˡ2Ǥ!
褺դοޤѤ18,3:4:5ξ狼
B(0,0),A(0,3*sqrt(2)),C(3*sqrt(2),0),D(3*sqrt(2),3*sqrt(2))
E(3*sqrt(2)-4*a,0),F(3*sqrt(2),3*a)Ȥ
ޤEAF=45ξ
٥ȥEA:A(0,3*sqrt(2)) E(3*sqrt(2)-4*a,0)
|EA|=sqrt((4*a-3*sqrt(2))^2+(3*sqrt(2))^2)=sqrt(16*a^2-24*sqrt(2)*a+36)
٥ȥFA:A(0,3*sqrt(2)) F(3*sqrt(2),3*a)
|FA|=sqrt((-3*sqrt(2))^2+(3*sqrt(2)-3*a)^2)=sqrt(9*a^2-18*sqrt(2)*a+36)
ȭǢEAF;Ѥ
cos(45)=sqrt(2)/2
=(16*a^2-24*sqrt(2)*a+36+9*a^2-18*sqrt(2)*a+36-25*a^2)/(2*sqrt(16*a^2-24*sqrt(2)*a+36)*sqrt(9*a^2-18*sqrt(2)*a+36))
aˤĤƤ򤯤
solve((16*a^2-24*sqrt(2)*a+36+9*a^2-18*sqrt(2)*a+36-25*a^2)/(2*sqrt(16*a^2-24*sqrt(2)*a+36)*sqrt(9*a^2-18*sqrt(2)*a+36))=sqrt(2)/2,a);
a=sqrt(2)/2(âaĹǥޥʥǤʤΤǤϾʤ)
ǽˤE,FE(sqrt(2),0)
F(3*sqrt(2),3*sqrt(2)/2)
ʾκɸ
ľEA:e1:y=-3*x+3*sqrt(2)$
ľFA:e2:y=-x/2+3*sqrt(2)$
ľEF:e3:y=3*x/4-3*sqrt(2)/4$
ľBD:e4:y=x$
e4,e1ȤθQ
solve([e4,e1],[x,y]);Q=(3*sqrt(2)/4,3*sqrt(2)/4)
e4,e2ȤθQ
solve([e4,e2],[x,y]);P(2*sqrt(2),2*sqrt(2))
ǭRR(b,3*b/4+3*sqrt(2)/4)
Ȥ
|ER|=sqrt((b-sqrt(2))^2+(3*b/4-3*sqrt(2)/4)^2)=5*sqrt(b^2-2*sqrt(2)*b+2)/4
sqrt(2)=BE=ER=5*sqrt(b^2-2*sqrt(2)*b+2)/4
bˤĤƤΤ򤤤
solve(sqrt(2)=5*sqrt(b^2-2*sqrt(2)*b+2)/4,b);b=9*sqrt(2)/5(âޤŬʤΤϽ)
ȭȤR(9*sqrt(2)/5,3*sqrt(2)/5)
e4:y-x=0ȤεΥľθ
|3*sqrt(2)/5-9*sqrt(2)/5|/sqrt(2)=|-6*sqrt(2)/5|/sqrt(2)=6/5
Ϲ⤵ǤդȤQPBD=3*sqrt(2)*sqrt(2)=6ȭ,ǤxɸκȤ
QP=6*(2*sqrt(2)-3*sqrt(2)/4)/(3*sqrt(2))=5/2
ȭȤꢤPQR=(5/2)*(6/5)/2=3/2()
֤ڤäǤǤϡ
˭ԡ 69ڡ 2:07:44 MAIL:fttnm528@ybb.ne.jp 25232
סϺ
׻ְ㤤򤷤Ƥޤäޤ֤ǸǤȤȡ
69ڡ 2:54:33 25233
Ϥʤ
#25231ߤᤳ
λѷ306090ˤʤʤȻפޤ

ºݡBQ:QP:PD3:5:4ϤʤǤ͡
Ĥޤꡢλѷ椬a:b:c(a<b<c)Ǥǡ
뻰ѷϡ

9(a+b-c)/(a+b+c)
ˤʤ餺ʤޤ
㤨Сľѻѷ5:12:13ȡ1.2ˤʤޤ͡

񤷤ʤǤ빽ڤΤǡͤƤߤƤ

ȡ硡 69ڡ 7:11:14 HomePage:http://hanau.daa.jp/blog2/25234
kasama
Ϥ褦ޤ
ߤ󤵤(#25225)Τ褦ˡأƤ֤ޡ٤CADο޷ˤʤޤǤ(^_^;)
69ڡ 9:23:46 25235
uchinyan
Ϥˤϡꡢ򤫤äǤ ^^/
ޤΤʤΤǡϡȾдʬޤˡǤ
ABE AE ˴ؤơADF AF ˴ؤơ줾ޤ֤ƤߤޤB ΰư GD ΰư H Ȥޤ
GAE + HAF = BAE + DAF = BAD - EAF = 90 - 45 = 45 = EAFAG = AB = AD = AH ʤΤǡG H Ȥϰפޤ
ˡAGE + AHF = ABE + ADF = 90 + 90 = 180 ʤΤǡE, G (= H), F Ϥν˰ľˤꡢ
GE = BE = ER ꡢG R ˰פޤ
ΤȤ顢BQ = RQDP = RPQRE = QBE = 45 = PDF = PRFBEQ = REQDPF = RPF ʤɤ⤤ޤ
äơ٤δط顢AEFREQRPF ϡˤʤޤ
PQREFC ˤơQRP = 180 - QRE - PRF = 180 - 45 - 45 = 90 Ǥޤ
QPR = 180 - QPA - RPF = 180 - DPF - RPF = 180 - 2 * RPF = 180 - 2 * REQ = 180 - BEQ - REQ = FEC
ǡPQR EFC ϡˤʤޤäơQRRPPQ = FCCEEF = 345 Ǥ
BQ = RQDP = RP äΤǡ줫顢BQQPPD = 354 Ǥ
BD ϡABCDгʤΤǡѤδط顢1/2 * BD * BD = ABCD = 18 ǡBD = 6cm Ǥ
äơBQ = 6 * 3/(3+4+5) = 3/2cmQP = 6 * 5/(3+4+5) = 5/2cmPD = 6 * 4/(3+4+5) = 2cm ˤʤޤ
줫顢RQ = BQ = 3/2RP = DP = 2 ǡPQR = 1/2 * RQ * RP = 1/2 * 3/2 * 2 = 3/2 cm^2 Ǥ
ͥνȡ 69ڡ 11:30:51 MAIL:uchi@sco.bekkoame.ne.jp 25236

ʤ󤫹ƱäݤѷȤäΤ
դƤ򤱤㤤ޤʴ

줫äȤޤ˹ͤƤ뤫ʡ
ˡι񡡡 69ڡ 15:59:51 HomePage:¤ο25237
uchinyan
Ϥ˻äȷǼĤɤߤޤ
ʥ쥹Ǥ#25236ɲá
EAF = 45٤Ǥ¤ꡢ#25236餫Ǥ
QR = BQ = BD * FC/(FC+CE+EF)RP = DP = BD * CE/(FC+CE+EF)PQ = BD * EF/(FC+CE+EF)
ˤʤޤϡ#25234ΰ̲ΥҥȤǤ͡
ʤĤ񤭹ߤʤʤȻפޤͤ¤ƤޤΤǤ礦
ͥνȡ 69ڡ 19:01:18 MAIL:uchi@sco.bekkoame.ne.jp 25238
M.Hossie
Фˤ㡣ϻŻĹƣ᤮ƤޤäΤǡĤǤ˼»֤Dz򤭤ޤγƱޤ֤ưգǹͤޤ޷⣳Ǥ͡ǶڤäƤΤǤޤäȲܤȤǤ
ϡ 69ڡ 20:32:11 25239
dis-
ѷƱˤʤǤʬ䤹Ǥ

CDαĹDE'=BEȤʤE'ȤޤABEưADˤäĤ륤᡼
ä餫AE=AE'ޤAF̤ EAFE'AF=45ʤΤǢAFE=AFE'
ˢAFRAFD,AR=AD,AF̤ǢAFR=AFD

ʴǡϢŪ˻ѷιƱǤޤ
69ڡ 21:19:13 25240
uchinyan
(ְ㤤ǤϤʤΤǤޤǤޤ)
ǼĤǡΰդ 6cm ȤơפȤ褦ʵҤ¿졢褯ʬʤäΤǤ
֤ʴʡפȻפäΤǡޤȤƤޤȤä̲ˤʤäƤޤ
׻ؤˤ뤿ˡ 18cm^2 ܤ 36 γȲꤷޤȡդ 6 ˤʤޤ
#25236βˡ dis- #25240Ʊͤ˹ͤȡBEQ REQDFP RFP ˤʤޤ
ΤȤCE = 4CF = 3 ȤȡBE = 2DF = 3 ȤʤꡢEF = ER + RF = BE + DF = 5 Ȥʤäơդޤ
A C ȤӡAC BD Ȥθ O Ȥޤ
AEC ˥ͥ饦ȤȡAQ/QE * EB/BC * CO/OA = 1 ǡAQ/QE = 6/2 = 3/1 Ǥ
AFC ˥ͥ饦ȤȡAP/PF * FD/DC * CO/OA = 1 ǡAP/PF = 6/3 = 2/1 Ǥ
ǡ
BCD = 1/2 * ABCD = 1/2 * 36 = 18
ECF = 1/2 * 4 * 3 = 6
BEQ = REQ = 1/4 * ABE = 1/4 * (1/2 * 2 * 6) = 3/2
DFP = RFP = 1/3 * ADF = 1/3 * (1/2 * 3 * 6) = 3
Ȥʤꡢ
PQR = BCD - ECF - BEQ - REQ - DFP - RFP = 18 - 6 - 2 * 3/2 - 2 * 3 = 3
ǡǽˡABCDѤܤˤƹͤƤΤǡºݤѤϡ
PQR = 3/2 cm^2 ˤʤޤ
ɤϡδطܼʤΤǡΰդ 6 ȤΤϡη׻صǤ͡
ͥνȡ 610ʶ 8:50:20 MAIL:uchi@sco.bekkoame.ne.jp 25241
¼ŵ
䤵ʤΤ˷礭إϤڤޤ
BʣˤȤȡPʣˡQ1.51,5ˡR3.61.2ˤޤ
PQ2.5QR1.5RPᣲȤڤΤդĹФޤϤǤإ1.5
°夬ޤƽơäȤѤʤȤڥθΤäˤʤޤ
610ʶ 0:33:07 MAIL:tedksya@r02.itscom.net 25242
ʸ
PW񤤤ƤʤäϤʤäΤ
Ѥ򼨤Ƥޤ
35ˤƤ褫ä󤸤ʤǤġ
610ʶ 9:18:45 MAIL:kyorofumi@msn.com HomePage:ʸ25243
ȥȥ
Ʊޤ֤դƲ򤭤ޤ
ä˺ƤǯϤȤꤿʤǤ
ʼ˸лԡ 610ʶ 11:42:01 MAIL:h-sakai@zb3.so-net.ne.jp 25244
Ȼ
3:4:5õޤ.줿
610ʶ 17:57:54 25245
HERO
ܤгäƤ
ˣߣޥοޤ
ǡAEAF¦ޤ֤
PQRľѤϤࡡդгȤԤäŤʤ
PR=г1.5ޥʬ=1.5cm
QR=гޥʬ=2cm
1.522=
611ڡ 4:43:11 25246
makokon
ޤ֤ƴñޤǤϻפäΤǤʤʤĹѴǤʤä
ɡȸ̤ˤƳդλѷι⤵ơ
ޤ
612 7:32:14 25247
shin koba
ޤ֤ޤϲžιƱ2005ҳرˤ顢ΰխơȤϡƤȲˡ줾쥯򸫤ĤСη׻ǼդλѷѤäȤ֤˵褦ˤפΤǤ
612 11:34:18 MAIL:shinchankobayashi@ybb.ne.jp 25248
Ҷ˥ޥ
Ϸ빽񤷤äǤǤ⡢Ǥ(ϳعϤ٤ߤǤ)
ԡ 613ʷ 12:41:01 25249
ϥ饮㡼ƥ
ɸǤޤ򤱤Ƥޤ
̶彣 613ʷ 20:12:43 HomePage:ĩ25250
Holly
ͤҳرפФޤ
ǤΤȤǤ򸫤Ĥޤ빽Ǻʤġġ
KKKԡ 614ʲС 22:24:00 MAIL:s-bun@fw.catv.ne.jp 25251