ߤ뤯
޷濴ĺĹ1ʤ餳ˤʤȻפǤ
95ڡ 0:12:41 40851
ޥ
ޤäοޤޤƤޤޤm(__)m
iMac 95ڡ 0:18:08 HomePage:40852
kurokori
졢21/5Ƥޤä
ߥΤ褦ʡ
95ڡ 0:18:11 40853
ߤ뤯
ADαĹBCαĹθE֤
ABEDCEȿ޷1/5Dz򤯤ȻפǤ

޷濴ĺĹ1BE=5,DE=2ˤʤ
95ڡ 0:21:52 40854
⡼ޥ
...ۤ ^^;
㤤Ƥޤ...
95ڡ 0:23:44 40855
ޥ
ޤ󡣼ޤޤm(__)m
iMac 95ڡ 0:25:04 HomePage:40856
kasama
(~~;)̵ФȡͤФƤޤäѤߥǤ
95ڡ 0:34:35 40857
Mr.ǥ
ˤʤ޳ѷѤ[1]Ȥȡʬջѷϡ[1/5]
BCADαĹθEȤ
ͳѷABCDᢤABEݢCDE52*[1/5]22*[1/5][21/5]
ȵޤ
ʤȤȡ椬ߤη׻ˤʤޤ̤͡ϡ215ݢ5/10
95ڡ 0:58:09 40858

Ʊ54롦54롦72ջѷʬͳѷαĹȤäƲ򤭤ޤդ3ʬDz򤱤ʤΤ˵դޤǻ֤ꤹ
95ڡ 1:12:24 40859
kasama
#40858
> ̤ϡ215ݢ5/10
⤽ʤޤ
95ڡ 1:25:28 40860
Ȥ
ľBC,ADθC,DǤǤ뻰ѷ
ľBC,ADθA,BǤǤ뻰ѷ2:5
ޤ޷5ʬȤ2:1
޷/޷=(25*(CDľBC,ADθ)/4-CDľBC,ADθ)/(5*CDľBC,ADθ/4)
CDľBC,ADθ=aȤ
expand((25*a/4-a)/(5*a/4))=21/5()
˭ԡ 95ڡ 2:08:27 40861

Ĥδ֤ˤƤޤäƤơ©Ҥ12Ȥä˲äƤȵ򸫤ȥޥ뤵򤵤줿Ǥ
濴ȤεΥcmȤΤҥȤǡջѷܡϣͣ򡥥ǥƱǤ
ĤʤɤǹԤͤޤäư쿲ꤷƤƹ͡ʤȤȤѥ¿ΤǤåǤ
95ڡ 2:02:12 40862

ޤջѷ
ADBCαĹθPȤ
2Ĥդ5ջѷĤ롣
λѷ1޳ѷ25(5^2)ܤ޳ѷ1/5Ǥ뤫顣
ջѷABP5ܤˤ롣
ޤͳѷABCDϱߤܤ뤳Ȥ顢
ABP梤PDC52Ǥ뤫顢
254
ʤ
ͳѷABCDջѷABP21/25
ä
521/2521/5()
95ڡ 2:40:41 HomePage:40863
fumio
Ϥ褦ޤפ֤Ǥ
ͤ籫ΰƶʤȵäƤޤ
ǤϤǤϡޤ͡
95ڡ 6:44:40 40864
ϥ饮㡼ƥ
21äƤʤȻפäƤޤ;
Ȥޤ
95ڡ 7:01:55 HomePage:湩ؤ˥40865

콵γڤߤ礱פä
Ƶ٤ߤǡɤȤϡ
ιԤڤޤޤ
餷빽빽

95ڡ 8:15:05 MAIL:yasuhirovich@oboe.ocn.ne.jp 40868

콵γڤߤ礱פä
Ƶ٤ߤǡɤȤϡ
ιԤڤޤޤ
餷빽빽

95ڡ 8:15:07 MAIL:yasuhirovich@oboe.ocn.ne.jp 40869

콵γڤߤ礱פä
Ƶ٤ߤǡɤȤϡ
ιԤڤޤޤ
餷빽빽

95ڡ 8:15:13 MAIL:yasuhirovich@oboe.ocn.ne.jp 40870

ˤäĤ餹򤱤ޤ(T_T)
2ܤαĹΤ֤ĤȤλѷ礭Τ龮ΤΰǤ͡
95ڡ 11:46:13 40871
uchinyan
Ϥˤϡơϡ
³޳ѷߤȻפäΤϤΤǤǽ֤ͤӤפ˵դ򷹤Ƥޤ
ʴǡ

AD BC Ĺ E Ȥޤ
DCE = 72롤CDE = 54= CEDCE = CD = 2 cmCDE ĺѤ 72դ 2 cm ջѷ
ABE = 54= AEBBAE = 72롤AE = AB = 5 cmABE ĺѤ 72դ 5 cm ջѷ
Ȥʤꡤ⡤ĺѤ 72ջѷϡ
޷޳ѷ濴ȳĺ޳ѷʬȤλѷΰĤǤ
ǡ = * 桤ꡤ
޷Ѥϡ޷ѤΡ
(5 * 5)/5 - (2 * 2)/5 = (25 - 4)/5 = 21/5
ˤʤޤ
ͥνȡ 95ڡ 11:57:19 MAIL:uchi@sco.bekkoame.ne.jp 40872
uchinyan
ǼĤɤߤޤ
ϡ֤ͤӤפΤdzñä褦Ǥ͡
ˡϡȤ⡤
AD BC Ĺ E ȤơABECDE ޳ѷ 1/5 ȤȤꡤ
= * 桤ǵˡ
Τ褦Ǥ

ŪˤϤʤ˴ñǤϤʤȻפΤǤΥ٥Ϲ⤤ʤ
ͥνȡ 95ڡ 12:10:23 MAIL:uchi@sco.bekkoame.ne.jp 40873
̴
ФƤޤä˵𤷤ޤܤäƤʤְ㤨줫鰭ƮڤƱǤɤä
95ڡ 14:14:42 40874
mukku
I got it
95ڡ 15:50:25 40875
ʤ
줿

޳ѷ濴ȡΤΤĺǤǤջѷΣĤѤ򣱤Ȥȡ޳ѷѤϣ

ͳѷABCDBCĹADȤθEȤ
ABE޳ѷΣĤջѷϣϣ

ƱͤˡEDC޳ѷΣĤջѷϣꡢϣ
ͳѷABCDѤϡݣᣲ
޳ѷѡͳѷѡᣵꡢ21/5ܡ

ͳѷγ٤ΣĤ٤ˤʤäƤΤǡ޳ѷҥȤʤȤͽ¬ϤĤޤƳޤǤ˷빽֤äƤޤޤ
95ڡ 16:43:01 40876
罡Ϻ
פ֤Ƥߤޤǯ֤ꡩ
95ڡ 17:18:21 40877