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ABCA-CҤä֤ƤäĤ롣BιԤRȤȡ6-8-10ľѻѷARD롣
ȡФλͳѤդĹ5cm
顢(AR*AD/2)*(AC/AP)(6*8/2)*(15/5)72 cm2
Ƕ1֤ۤɤäƤΤˡʬǤǤƤۤäȤޤ

914ڡ 0:29:21 46615
Mr.ǥ
QBCQPCD˽Ťʤ褦˰ưȤBΰưB'Ȥ
ADB'3դ345ľѻѷȤʤ
AP=PB'5ȤʤꡡB'QȤϰפ뤳Ȥˤʤ
AP=PQ=QC=5ADQ=(1/2)*6*8=24
ADPᢤQBC=24/2=12
ʾΤȤ顡ͳѷABCD12*672
Τ褦˵ޤ
914ڡ 0:15:14 46616
鯤ο
BQ=r,BQCȡSȤȡ

S=(r^2+2(r+5)r+r^2)*sin/2
BQCAQCˤĤơ;顢
r^2+r^2-2*r^2*cosȡ36
r^2+r^2+2*r^2*cosȡ64

r=5cosȡ7/25
äơsinȡ24/25
ơS=72
//
914ڡ 0:17:06 46617
ŷ¢
ɽ˺ܤ̾ϤΤ2ʬʾΤޤޤۤޡ
914ڡ 0:20:43 46618
٥륯åĥ
ѷ£ãѤȣģФ򤯤äĤľѻѷä68224СѣäʤΤǣ£+ãģѤƱ24ȤϣУѤƱĹʬ24372ǤäҤä֤Ƥ345Ǥ뤷üᤤǤ͡
914ڡ 0:23:59 46619
å֡Ʊ
ʬڤȤ
914ڡ 0:31:00 46620
ϥ饮ݥƥ
MahematicaDz򤭤ޤ
914ڡ 0:38:58 HomePage:湩ؤ˥46621
鯤ο
BCQȢAPQCQDPĥ碌ȡB,Q,Aϰľˤʤꡢ
QB=QC=PDꡢŽ碌޷BCAϡCľѤˤʤդ椬3:4:5ľѻѷ
äơBA=10cmBQ5cm
BCAѤϡ6*8/224.

BCABAդȤ⤵ϡ6*8/10=4.8.
äơBQCȤȤȡsinȡ4.8/524/25

Ĥο޷AQCPŽ碌СB,Q,Dϰľˤʤ
ABD10*10*sin/248

碌ơ
ABCD=24+4872
//
914ڡ 0:40:01 46622
Ȥ
a,bȤƺɸA(5+sqrt(a^2+b^2),0),B(-a,b),C(-sqrt(a^2+b^2),0),D(5-a,-b),P(5,0),Q(0,0)Ȥ
BC,ADĹǻʿǤ줾(Sqrt(a^2+b^2)-a)^2+b^2=36,(sqrt(a^2+b^2)+a)^2+b^2=64
xȤ(5+2*sqrt(a^2+b^2))*b=x 3ϢΩȤơMathematica 8.0.4.0 home edition Dz򤯤

Solve[a>0 && b>0 && (Sqrt[a^2+b^2]-a)^2+b^2 == 36 && (Sqrt[a^2+b^2]+a)^2+b^2 == 64 && (5+2 Sqrt[a^2+b^2]) b == x,{a,b,x}]
a->7/5,b->24/5,x->72()
˭ԡ 914ڡ 1:00:00 MAIL:fttnm528@ybb.ne.jp 46623
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dzھФ
Ķļˡ 914ڡ 1:54:57 46625
ֿء׾ι
;ȤޤŻޤ
914ڡ 3:20:22 46626

פ֤˽񤭹ߤޤ
λǣľѻѷȤʤꡢȤƤʬۤɤDz򤱤ʢãĤҤä֤Ƣ£ãĤꡢѤϣãѤΣܤʤΤǢ£Ĥ⢤£ãĤΣܡˤΤǤˤߤʤᤤǤ͡
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ס30äDz򤱤(*ء*)
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cocogoo
פ֤˻ѷιƱ3:4:5λѷȥԥ饹Ȥ˵äƲ򤱤ޤ
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cocogoo
ѴؿϻȤ鷺򤱤ޤ
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DSK24
ѴؿϻȤ鷺ŻǹԤޤ
3:4:5ϿءäƻפʤͤƤޤ
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ܰʬä㤦ϤǤ͡

AQDϣľѻѷʬä顢ͳѷABCDѤޤä㤤ޤ
̸ǭ 914ڡ 20:14:52 46633
koji
ʤȤ
914ڡ 23:38:15 46634
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3:4:5ϤɤääƤȤΤͤƤߤ
դȤäơѷѤ6ˤʤȤä꤯Ԥ
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915ʶ 0:38:26 46635
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#46635
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