a;b;c} d.p {3;4;5}
a/3=b/4=c/5=k
a=3k
b=4k
c=5k
a+b+c=180 de grade
3k + 4k + 5k = 180 grade
12k=180
k=180:12
k=15
a=3k => 3 ori 15 = 45 grade
b=4k => 4 ori 15 = 60 grade
c=5k => 5 ori 15 = 75 grade
Cel mai mare unghi al triunghiului are masura de 75 grade .