notăm unghiurile cu a, b, c
[tex]a = 0.5 = \frac{5}{10} = \frac{1}{2} \\ b = 0.25 = \frac{25}{100} = \frac{5}{20} = \frac{1}{4} \\ c = 0.(3) = \frac{3}{9} = \frac{1}{3} \\ \frac{1}{2} + \frac{1}{4} + \frac{1}{3} = k \\ 6 + 3 + 4 = k \\ 13 = k \\ a = \frac{1}{2} \times \frac{26}{2} = 13 \\ b = \frac{1}{4} \times \frac{52}{4} = 13 \\ c = \frac{1}{3} \times \frac{39}{3} = 13 \\ [/tex]
nuj dacă am facut corect.... sper ca te-am ajutat...
