[tex] \frac{a+b+c}{2} =5,25= \frac{525}{100} = \frac{21}{4}
[/tex]
[tex]a+b+c= \frac{21ori2}{4} = \frac{21}{2} = \frac{21ori5}{10} = \frac{105}{10} =10,5[/tex]
a=b+2,8⇒ b=a-2,8
a=c+5,45⇒ c=a-5,45
a+b+c=a+a-2,80+a-5,45=10,5
3a-8,25=10,50
3a=18,75
[tex]a= \frac{1875}{100} ori \frac{1}{3} = \frac{625}{100} =6,25[/tex]
a=6,25 ⇒b=6,25-2,80=3,45
c=6,25-5,45=0,8
