Răspuns:
[tex]a + b + c = 180 \: \: \: \: \: \: \frac{a}{2} = \frac{b}{3} = \frac{c}{4} \\ \frac{a}{2} + \frac{b}{3} + \frac{c}{4} = \frac{a + b + c}{2 + 3 + 4} = \frac{180}{9} = 20 \\ \frac{a}{2} = 20 ; \: a = 2 \times 20 = 40 \\ \frac{b}{3} = 20 ; \: b = 3 \times 20 = 60 \\ \frac{c}{4} = 20; \: c =4 \times 20 = 80[/tex]
sper că te-am ajutat
