Question

Porfavor es urgente ​

Answer 1

Respuesta:

Explicación paso a paso:

ley de seno

a/ sen A = b/sen B = c/sen C

(1+$\sqrt{5}$)/sen 108° = b/sen 36°

sen 108° = sen (180° - 108°) = sen 72°

reemplaza

(1+$\sqrt{5}$).sen 36°/sen 72° = b

(1+$\sqrt{5}$).(0.58775)/(0.951056) = b

1.9998 = b

2 = b