Question

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Answer 1

Vamos usar a lei dos senos:

$\frac{x + 10}{sen 45}$ = $\frac{100}{sen 30}$

$\frac{x + 10}{sen 45}$ = $\frac{100}{1/2}$

$\frac{x + 10}{sen 45}$ = 200

x + 10 = 200 . sen45

x + 10 = (200 . $\sqrt{2}$) / 2

x + 10 = (200 . 1,41) / 2

x + 10 = 100 . 1,41

x + 10 = 141

x = 141 - 10

x = 131 metros

Resposta: x = 131 metros