Question

Ajudaaaaa!!! pra hojee​

Answer 1

Resposta:

a) 45°, b)60°, c)20°, d)110°, e)30°, f)70°

Explicação passo-a-passo:

a)

$x+90+45=180\\x+135=180\\x=180-135\\x-45$

b)

$x+60+60=180\\x+120=180\\x=180-120\\x=60$

c)

$x+130+30=180\\x+160=180\\x=180-160\\x=20$

d)

$x+35+35=180\\x+70=180\\x=180-70\\x=110$

e)

$x+90+60=180\\x+150=180\\x=180-150\\x=30$

f)

$x+60+50=180\\x+110=180\\x=180-110\\x=70$