Question

Como hallar esos tres términos?

Answer 1

$\alpha = 40 \: \: \beta = 50 \: \: \gamma = 80 \\ \\ \alpha + 90 + \beta = 180 \: ......(1) \\ \\ 70 + 70 + \alpha = 180 \: - > \alpha = 40 \\ \\ en \: (1) \\ 40 + 90 + \beta = 180 - > \beta = 50 \\ \gamma + \beta + \beta = \gamma + 50 + 50 = 180 - > \gamma = 80$