鯤ο
B̤ꡢECʿԤľľADθGȤȡ
AF:FG5:2ȤʤꡢAGᢤACȤʤꡢAGC2ջѷ
ˡͥ饦ꡢAF:FD45:4
AF:FG=5:245:18ȹ碌ȡAD:DG45+4:18-47:2BD:DC
äơABD梤GCDȤʤꡢBADCGD
BADxȤȡ
AGCѤ¤ˤĤ
x+x+112-x=180
x=68
//
1017ڡ 0:30:18 48481
̤ꤹ
󡢽񤭹ߤʤ58ˤʤΤǤ
1017ڡ 0:30:48 48482
ʤ
BA2/7ĹPȤȡCAPջѷˤʤꡢADPCʿԤʤΤǡ
1017ڡ 0:33:42 MAIL:junsan23@ezweb.ne.jp 48483
٥륯åĥ
٥ڤǣơƣġ454ʤΤǡġá79¤Ĺ7Ȥƣ2ФǤȤȡѷ£ĤȻѷǣ£äϻդ椬ΤäȣǣäƱĹʤΤǡѣ£ġѣ£ǣáѣǣá180-11268Ȥʤޤ
񤷤ä

äȽ
դ椬ǤϤʤդȤδ֤γѤǡĤգġǣä79Ǥ͡򤯤Τ˻Ȥäޤ򸫤ʤ񤤤ƤְäƤޤ
1017ڡ 0:54:42 48484
鯤ο
>48483

䤫ޤǾ׻Ǿ
⹻ʾοػȤ鷺Dz򤱤ƴǤڤ̣㤤᤮ޤ
1017ڡ 0:47:22 48485
̻
E̤BCʿԤACȸGȤ롣AG:GC=5:2ꡢ
AFG2ջѷޤEF:FC=5:2ʤΤǡFGABʿԡ
AFG2ĤγѤϡ180-112=68٤ʿ
ѤʤΤǡ68١Ф餷Ȼפޤ

1017ڡ 1:26:22 48486

#48483ʤ󤵤ƱˡǤ£򭢱ĹȡP)BA:AP=BD
DC᣷ADʿPCECPAE:PC=EA:EP=ȤʤPC=ACCPAջѷ
BAD=CPA=CAPᣱݢBAC=ݣ᣶
֭䤻ʿˤʤפĤȰƳᤫäǤ
¾ˡ⤫ФߤʤΤΤҸ˻ͤˤʤޤäƳڤǤ͡
1017ڡ 2:13:22 48487
ֿء׾ι
ȯ̵ۤơޥեȤȤäƤޤޤʡ
#48483AFʿPCAF:PC=5:7椨PC=ACȤʤꡢCAPջѷˤʤȤȤʤۤɡȯۤǤ褦ˤʤꤿǤ
1017ڡ 7:25:11 48488
Ȥ
ʸ112߳Ѥʤ鲿٤Ǥ褯tan(b)(b=68)Ȥ
ɸA(0,0),B(-7,0),C(a,-tan(b)*a),D(7*(a-2)/9,-7*tan(b)*a/9),E(-5,0)
ľEC:y=-tan(b)*a*(x+5)/(a+5)
ľAD:y=tan(b)*a*x/(2-a)Ȥ
2ľθF((5*a-10)/7,-5*a*tan(b)/7)(1)
AF^2:AC^2=25:49 ꡡ25*AC^2-49*AF^2=0
25*a^2*(tan(b)^2+1)-49*(25*a^2*tan(b)^2/49+(5*a-10)^2/49)=100*(a-1)=0
a=1(1)ȤF(-5/7,-5*tan(b)/7)
tan(BAD)=tan(b)ꡡBAD=68١()
˭ԡ 1017ڡ 13:31:13 48489
ˤ
EBCʿԤAC5:2ʬơF
ʤȤʤʴ
Ķļˡ 1017ڡ 14:47:04 HomePage:ޤޤ48490
⡼ޥ
#48486
ä!!
̻ͤ䤫͢
ʤʤŤޤǤ...^^;
1017ڡ 14:50:20 48491
Mr.ǥ
ʤ󤵤Ρ#48483ϾꤤǤ͡

ڻβˡۡƱˡʤΤǡ٤Фʤ񤭹Ǥߤޤ

ͥ饦ꡡAF:FD=454
衡AC:AD=97
CAA¦˱ĹTȤAC:AD=CB:BDȤʤΤ
ABϢTADʬ
ä
BAD=TAB=18011268
1019ڡ 11:49:52 48492
ˤ
٥ȥǷ׻CF:FE=2:5Ǥʿʤɤǡ
Ķļˡ 1018ʶ 15:09:48 HomePage:ޤޤ48493
å
򤫤äǤ
1019ڡ 1:35:43 48494
ޤ
ϡʤ˥ᤫĤ⡼
Ǥ򤱤Ƥޤޤ(^o^)

ܼϡФβƱǤ礦
AFαĹB̤ECʿԤȤ
GȤȡAGCջѷ
AB// CGޤ!

somewhere in the world 1019ڡ 14:01:28 48495
ޤ
#48483ʤ
CA=CPϡAF:FD=45:4 ͳ
Ǥ礦ġ

ű󤷤ޤm(__)m
#48487
#48488 ֿء׾ιԤ
ѤǤm(__)m
somewhere in the world 1019ڡ 19:59:41 48496
CRYING DOLPHIN
̤νζȳǤͭ̾Ǥ礦
夲ƻ衡 1023ʿ 9:17:26 MAIL:Ԥ HomePage:ԤԤ󤹤48497