9.5. In a set of five sticks, no three sticks can form a triangle. Could it be that, by breaking one of the sticks into two, we obtain six sticks, from which two isosceles triangles can be formed?
9.5. Answer. It could.

For example, a set of sticks with lengths $1,1,2,3,5$ would work. By breaking the stick of length 5 into two sticks of lengths 2 and 3, we can form two isosceles triangles with sides $1,2,2$ and $1,3,3$.