Question

The sides of a triangle are 6m 9m 13m is it a right angled triangle
want answer with definition ​

Answer 1

no its not a right cuz here it is given the length of the sides . so it is not a triangle $\neq \pi \pi \alpha \alpha \alpha \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$