Question

preciso urgentemente da resposta​

Answer 1

3x=α

2x+80+3x=180

5x=180-80

5x=100

x=100/5

x=20°

2x+80+α=180

2(20)+80+α=180

40+80+α=180

α=180-80-40

α=60°

3x=α

3(20)=60

60°=60°

Sim, α equivale ao triplo do valor de x.