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2014-04-21T10:29:57+03:00
A,b,c - laturile triunghiului
a+b+c=240
a=4k
b=6k
c=14k

4k+6k+14k=240
24k=240
k=240:24
k=10

a=4*10=40
b=6*10=60
c=14*10=140
2 4 2
2014-04-21T10:31:35+03:00
Notam laturile tr cu a,b,c
a/4=b/6=c/14=k
a=4k
b=6k
c=14k
4k+6k+14k=240
24k=240
k=10
a=40
b=60
c=140
1 5 1