По теореме синусов
AB=\frac{AC*sin\angle C}{sin\angle B}=\frac{10sin30^o}{sin48^o} \approx \\ \approx \frac{10*0,5}{0,7431} \approx 6,7" alt="\frac{AC}{sin\angle B}=\frac{AB}{sin\angle C}\ => AB=\frac{AC*sin\angle C}{sin\angle B}=\frac{10sin30^o}{sin48^o} \approx \\ \approx \frac{10*0,5}{0,7431} \approx 6,7" align="absmiddle" class="latex-formula">