Question

Exemplo:

2x+80°+40°=180°
2x=180°- 80°-40°
2x= 60°
x=60°/2
x= 30°

Answer 1

Resposta:

60'+30' =180'

Explicação passo-a-passo:

60'+30'=180'

90'=180'

X=180'

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90'(Ans 20'rst angle is =60,multiply 20'=120'first angle is

second angle is 30multiply 20'=60'

Ans 120' and 60'