Question

encontre o valor de x e y​

Answer 1

$\cos(60^{\circ})=\dfrac{10}{x} \\\dfrac{1}{2}=\dfrac{10}{x} \\x=2.10=20$

$\tan(60^{\circ})=\dfrac{x}{10}\\\sqrt{3}=\dfrac{x}{10}\\x=10\sqrt{3}$