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Gustavo21mbs
@Gustavo21mbs
December 2019
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Ajuda aí, por favor ❤!
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marcelloalexan3
A soma de todos os ângulos do triangulo é 180°
x+48+90=180
x+138=180
x=180-138
x=42
Resposta_ 42°
1 votes
Thanks 1
fhcordeiro
A soma dos ângulos internos equivale a 180 graus. Sendo assim:
90 + 48 + x = 180
x = 180-90-48
x = 42 graus.
O valor do ângulo alfa é 42.
0 votes
Thanks 1
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Lista de comentários
x+48+90=180
x+138=180
x=180-138
x=42
Resposta_ 42°
90 + 48 + x = 180
x = 180-90-48
x = 42 graus.
O valor do ângulo alfa é 42.