December 2019 1 110 Report
1*) Numa pousada isolada , instalada na floresta , um lampião está suspenso na parede conforme a figura a seguir :
sen 30° = 0,50
cos 30° = 0,87
tg 30° = 0,58
"A bipotenusa do triângulo ABC formando e o ângulo x medem , respectivamente" ??
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