Question

me ajudem por favor?????​

Answer 1

Resposta:

$hipotenusa=20\ N$

$cos\ 30=\frac{\sqrt{3}}{3}$

$cos\ 30=\frac{1}{2}$

$b= cos \ 30 \cdot hipotenusa$

$b= \frac{\sqrt{3} }{2} \cdot 20$

$b= \frac{20 }{2} \sqrt{3}$

$b= 10 \sqrt{3} \ N$

$c= sen \ 30 \cdot hipotenusa$

$c= \frac{1}{2} \cdot 20$

$c= \frac{20}{2}$

$c= 10\ N$

Letra B