Question

Preciso entregar isso amanhã. Me ajude, por favor​

Answer 1

Explicação passo-a-passo:

1)

$\sf cos~30^{\circ}=\dfrac{cateto~adjacente}{hipotenusa}$

$\sf \dfrac{\sqrt{3}}{2}=\dfrac{5,2}{x}$

$\sf \dfrac{1,73}{2}=\dfrac{5,2}{x}$

$\sf 0,865=\dfrac{5,2}{x}$

$\sf 0,865x=5,2$

$\sf x=\dfrac{5,2}{0,865}$

$\boxed{\red{\sf x=6~m}}$

2)

$\sf sen~60^{\circ}=\dfrac{cateto~oposto}{hipotenusa}$

$\sf \dfrac{\sqrt{3}}{2}=\dfrac{x}{1000}$

$\sf 2x=1000\sqrt{3}$

$\sf x=\dfrac{1000\sqrt{3}}{2}$

$\boxed{\red{\sf x=500\sqrt{3}~m}}$