Question

Answer 1

\(AC=AB\cdot\sin55^0\simeq6,55\left(cm\right)\)

Answer 2

Lời giải:

$\frac{AC}{AB}=\sin \widehat{B}=\sin 55^0$

$AC=AB.\sin 55^0=8\sin 55^0=6,55$ (cm)