\(\widehat{B}=80^0;\widehat{C}=60^0\)
Tổng 3 g của tam giác là \(180^0\)
\(\Rightarrow\widehat{B}+\widehat{C}=180^0-\widehat{A}=180^0-50^0=130^0\)
\(Mà\) \(\widehat{B}=\widehat{C}+10^0\)
\(\Rightarrow\widehat{C}+10^0+\widehat{C}=130^0\Rightarrow2\widehat{C}=120^0\Rightarrow\widehat{C}=60^0\)
\(\Rightarrow\widehat{B}=60^0+10^0=70^0\)