8周長為24且三邊長均為整數的不全等三角形共有幾種?(8分)
a. b. C, a.b.CEN
a> by C, a+b+c=24
[配合習題4]
CHANICAL PENCIL 0.5MM RUBBER GRIP
MECHANICAL
=> b+c>a
a+b+c>za
29 <24
a <12
a+a+a> a+b+c
3A > 24
a 7, 8]
=> a = 8,9,10,11
AN
4-1
09-8
b+c=16
(8,818) 1
0=9
b+c=15
(9,9.6) (9.8.7)
2=10
b+c=14
(10,9,5) (10.8,6) (10,77)
a=11
b+c=13
(11,10,3) (11,9,4) (11,8,5) (11,7,6)
共1+2+3+4=10種
W