Determine o valor de x na figura a seguir:

Determine o valor de x na figura a seguir:

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    Temos o valor de um dos catetos e queremos descobrir o valor do outro. A relao que relaciona dois catetos a tangente do ngulo:

    tgtheta = frac{CO}{CA}#10;#10;tg30ordm; = frac{x}{30}#10;#10;frac{sqrt{3}}{3} = frac{x}{30}#10;#10;x = 30 cdot frac{sqrt{3}}{3}#10;#10;x = frac{30sqrt{3}}{3}#10;#10;boxed{boxed{x = 10sqrt{3}}}

  • Tg30=0.57
    0.57×30=17.1

    RESPOSTA =17.1

    PROVA REAL
    ((17.1)(30))= 34.53(HIPOTENUSA)
    (34.53)(17.1)) = 30(CATETO ADJACENTE, QUE FOI DADO NO EXERCICIO)


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+ 63 = 69