Question

calcular o valor de x em cada um dos triangulos ;v

Answer 1

$cos~30 = \frac{3 \sqrt{3} }{x} \\ \\ \frac{ \sqrt{3} }{2} = \frac{3 \sqrt{3} }{x} \\ \\ x \sqrt{3} = 6 \sqrt{3} \\ \\ x = 6~cm$

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$cos~45= \frac{2 \sqrt{2} }{x} \\ \\ \frac{ \sqrt{2} }{2} = \frac{2 \sqrt{2} }{x} \\ \\ x \sqrt{2} = 4 \sqrt{2} \\ \\ x = 4~cm$

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$tg~30 = \frac{x}{2,5} \\ \\ \frac{ \sqrt{3} }{3} = \frac{x}{2,5} \\ \\ 3x = 2,5 \sqrt{3} \\ \\ x = \frac{2,5 \sqrt{3} }{3} \\ \\ x = 1,4434~cm$