Question

Determine a medida x no triângulo retângulo abaixo.
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Answer 1

$\large\boxed{\begin{array}{l}\rm sen(45^\circ)=\dfrac{x}{10}\\\\\rm x=10\cdot sen(45^\circ)\\\rm x=10\cdot\dfrac{\sqrt{2}}{2}\\\\\rm x=5\sqrt{2}\,cm\end{array}}$