Answer:
7 units, 6 units, 12 units,
5 units, 13 units, 11 units
Step-by-step explanation:
In all triangles, the sum of any two sides of the triangle must be larger than the third.
We can test this by adding the shortest two sides of any triangle and see if this is true:
[tex]3+4\ngtr 8\implies \text{No triangle},\\7+6> 12\implies \text{Triangle possible}\checkmark,\\5+11>13\implies \text{Triangle possible}\checkmark,\\6+4\ngtr 12\implies \text{No triangle},\\6+4\ngtr 10\implies \text{No triangle}[/tex]
