Question

Lm giúp mik với ạ

Answer 1

Xét ΔABC có

\(\widehat{B}+\widehat{C}+\widehat{A}=180^0\)

\(\Leftrightarrow2\cdot\widehat{B}=180^0-\widehat{A}\)

hay \(\widehat{B}=\widehat{C}=\dfrac{180^0-\widehat{A}}{2}\)

Answer 2

Hông bé ơi 😊🤣🤣🤣🤣😅😂😂