Sabe-se que, num triângulo isósceles, cada lado congruente
Sabe-se que, num triângulo isósceles, cada lado congruente mede 40 cm. Se cada ângulo da base desse triângulo mede 62 degrees determine:
a) a medida x da base;
b) a medida h da altura.
(Use: sen 62 degrees = 0.88 ; cos 62^ =0,47;tg 62^ =1,88)
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