Answer:
1.6 < x < 9.6.
Step-by-step explanation:
Now x cannot be less than 5.6 - 4.0 = 1.6 as a triangle could not be formed if it were.
In fact x must be greater than 1.6.
Also x must be less than the sum of the other 2 sides.
So x must be less than 4.0 + 5.6 = 9.6.
