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ȤϿؤǤ겡
ͤˤʤʤˡǤɤ⤹ߤޤ
47ڡ 0:26:46 37637

յ٤ǻ֤δ̵ֳư٤졣
Ĵ٤ȢDHEDICäƢDEIȢDCFʤΤǡ
http://pic.2ch.at/s/20mai00400280.jpg
ǹ⤵100
47ڡ 1:10:59 37638
ma-mu-ta
DBCαĹ˿򲼤­JȤޤ
Ѥδط顡DHE梤DICDEI梤DCJȤʤꡢ
DEDCDHDI35DIDJDEDC35
ϢȡDHDIDJ91525
դѷ⤵顢
DEBCDBDHDJ925
äơCDBᢤDEB25/93625/9100
47ڡ 1:52:17 37639
CRYING DOLPHIN
ǽ顢CEBѷȲ(ü첽)ؤǥ겡100򻻽С
ü첽Ȥ˰̲ǤʤȴΤΡ
ľʿ޷򸫤Ĥˤѹ

BDEαĹ˿BJBACαĹ˿BK򲼤ȡ
DEBDBCDEBJDCBKΤɸȤʤ롣

DEADAEDECᢢȤƳ٤񤭹Ǥȡ
DECȽDHEȢDICǡDEDCDHDI35Ĺ

ޤJEBBCKBEBCꡢBCKB濴Ȥ
BCBEפޤDzžƢEJBȹΤȡͳѷDHEI
ʻͳѷ롣äơBJBKDHDI35 IJ

òꡢDEBDBC3355925
äƵѤ36925100cm^2

᤯ȽDEDC35ˤ᤮ơʤ
ʲˡˤʤäƤޤäޤ
椫顢ñ֤뤳ȤǤɡ
λˤפĤȤǤˤʤ
ƤޤäƤʤ(
ɤǤ᤿ 47ڡ 1:59:46 HomePage:ƻ37640
aibo
񤷤äǤ3:4:5λѷȷǤޤꤤˡĤ餺ʿءĻǰääٶޤ
47ڡ 4:21:17 37641
nora
֤Ǥä餽ν˥󥯥󤷤ޤ
47ڡ 7:53:01 37642
Ҥ
ü첽Ǥ
ŤȣɤפȢãģŤ⣳ȤʤꡢޤäľѤˤʤ롣
ãĤߣʤΤդ⤵ʤΤǡߣᣱ
47ڡ 8:33:32 37643
ϥ饮㡼ƥ
Ϥ褦ޤü첽ȿؤǤCD*CBͿ줿狼ޤ
47ڡ 9:27:18 HomePage:湩ؤ˥37644
ޥ
ü첽¿Ǥ...ϡ֤ϥХƤޤΤǤ..פȻפܼ򤤤˱ǤͤΤǤ...ϡDAEʬϤޤǤ

ϡ#37638ΡߤΤΤƱǤ
iMac 47ڡ 10:10:08 HomePage:Men @ Work37645
uchinyan
Ϥˤϡơϡ
ࡤ񤷤äؤǤϤǤƤΤǤäȡˡʬޤ

ޤDHEI ˤơDHE = DIE = 90ʤΤǡ
IDH = 360- DHE - DIE - HEI = 360- 180- HEI = 180- HEI = CEB = CDE Ǥ
ǡEDH = IDH - IDE = CDE - IDE = CDI ˤʤꡤDHE = DIC = 90ʤΤǡ
DHE DIC ȤʤꡤDEDC = DHDI = 35DEH = DCI ˤʤޤ
ޤǤϤʬäΤǤθ夬㤨ʤä㥴äƤơɡ
ǡD BC αĹ˿򲼤­ J Ȥޤ
ȡDCJ = 180- DCB = 180- DCI - BCE = 180- DEH - BEC = DEI ˤʤꡤ
DIE = DJC = 90ʤΤǡDEI 梤DCJ ȤʤꡤDIDJ = DEDC = 35 ˤʤޤ
ǡDHDIDJ = 91525 ˤʤꡤBE = BC ʤΤǡ
DEBCDB = DEBDBC = DHDJ36CDB = 925CDB = 36 * 25/9 = 100 cm^2
ˤʤޤ
ͥνȡ 47ڡ 13:01:03 MAIL:uchi@sco.bekkoame.ne.jp 37646
uchinyan
ǼĤɤߤޤ

#37637#37640κǽ#37641#37643#37644
ü첽(ڤɬפ˱ƿ)ˤˡ

#37638#37639#37646#37648
D BC αĹ˿򲼤­ J ȤȡˤäơDHDIDJ = 91525 Ȥʤ뤳ȤȤˡ

#37640θ
BDEαĹ˿BJBACαĹ˿BK򲼤ȡ
䢤DEBDBCDEBJDCBKΤɸȤʤ롣
Ȥˤβˡ

ʤؤǡȳڤäƤޤСδǤǤޤͤޤǡ

CDE γܱߤȡꡤAB E ܤƤꡤ
DEH = DCI ǡDHE DIC ȤʤꡤDEDC = DHDI = 35 ˤʤޤ
ǡBE = aDE = 3bDC = 5bDH = 3hDI = 5hBEC = p ȤȡCE = 2a * cos(p) ǡ
DEC ;(2a * cos(p))^2 = (5b)^2 + (3b)^2 - 2 * 3b * 5b * cos(p)
DEC ѡ3b * 5b * sin(p) * 1/2 = 2a * cos(p) * 5h * 1/2
DEB ѡa * 3h * 1/2 = 36
CDB = CDE + BCD - DEB = 2a * cos(p) * (5h + a * sin(p)) * 1/2 - 36
ǽμϡ4a^2 * (cos(p))^2 = 34b^2 - 30b^2 * cos(p)
ܤμϡah = 24
ܤμϡb^2 * sin(p) = 16 * cos(p)
ǡ
CDB = 5ah * cos(p) + a^2 * cos(p)sin(p) - 36
= 120 * cos(p) + a^2 * cos(p) * 16 * cos(p)/b^2 - 36
= 120 * cos(p) + 4 * 4a^2 * (cos(p))^2 * 1/b^2 - 36
= 120 * cos(p) + 4 * (34b^2 - 30b^2 * cos(p)) * 1/b^2 - 36
= 120 * cos(p) + 136 - 120 * cos(p) - 36
= 136 - 36
= 100 cm^2
ˤʤޤ

ʤѿοοꡤͳ٤ĤäƤΤ餫ǡü첽ǽʤȤʬޤ͡
ͥνȡ 47ڡ 22:42:59 37647
ͣ.ǥ
ѤʤȤˤꤹ
򤱤ñʤΤǡƬηǧǤ

Ĥľ£ä˿ģȡǤ򲼤Ȥäơģȡģȡǡ925
ƳȤˡǤ
47ڡ 19:21:37 37648
礪Ҥ
路ޤ7֤ۤɤޤ
礭ʺ䡡 47ڡ 21:30:31 37649
߼Ψ繥ʹ
ҤȤĵʤΤǤacb߳ѤȹͤƤޤäƤΤǤ礦
bcαĹ˿򤪤Ȥʤȡؤ꤬
ĤޤʤǤߤޤ󡰡
48ʶ 0:40:08 37650
abc
#37650
DʬEC˿­IҤƤΤǡDEI90
衡ACB=180롼DEI90Ȥʤޤ
48ʶ 8:44:37 37653
߼Ψ繥ʹ
ʤۤɡ꤬Ȥޤ
եΰ衡 48ʶ 21:42:20 37654
饤Х
ϺĹ󡢤ϤФˤǤ͡
49ڡ 9:49:55 37655
ߡ
ä֤ˤǤ礤ᤷ
ϤäȾ֤ǤΤDz򤤤Ƥߤޤ
410 21:05:18 37656
fumio
Фϡ䡼񤷤äϤϤϡ
򤱤Ƥ褫ä
410 22:58:33 37657
⡼ޥ
äȵŤ ^^;
CDEDD'롣
DAE-EAC-D'EC Ȥʤ...
DE:DC=3:5
CD'=3t Ȥ...D'D=2t
CD'+D'D=5 ʤΤ...
CD'=3, D'D=2
DAEᢤD'EC Ȥ狼...
CE=EA
EDD'-BCE ʤΤ...
CE:EB=2:3
·äΤ...
36*'{((3/2)+1)/(3/2)}*(5/3)=4*5^2=100

ޤDZ󤫤ä...^^;
411ʷ 14:53:51 37658
ޥ
ǯδ˥եߤǤ5/22ˤȤʤޤޤ
iMac 413ʿ 5:28:37 HomePage:Men @ Work37659