Prove that in every triangle we always have : \(60< \dfrac{aA+bB+cC}{a+b+c}< 90\) where A, B, C are the angles of triangle and a, b, c are edges opposite to that angle .
Prove that in every triangle we always have :
\(60< \dfrac{aA+bB+cC}{a+b+c}< 90\) where A, B, C are the angles of triangle and a, b, c are edges opposite to that angle .
