Question

URGENTEE! Ajudem pfv

Answer 1

Descobrindo o valor do terceiro ângulo:
A = 180° - 49° - 64° = 67°

Aplicando a lei dos senos:

$\frac{BC}{sen A} = \frac{AC}{sen B} = \frac{AB}{sen C}$

$\frac{17}{sen 67} = \frac{AB}{sen 49} = \frac{AC}{sen 64}$

$\frac{17}{sen 67} = \frac{AB}{sen 49}$

$AB = \frac{17 sen 49}{sen 67}$

$AB = 13, 94$

$\frac{17}{sen 67} = \frac{AC}{sen 64}$

$AC = \frac{17 sen 64}{sen 67}$

$AC = 16,60$

BC = 17
AC = 16,6
AB = 13,94