Answer:
- The third side may be between 1 and 13 units
Step-by-step explanation:
Let the missing side is x.
According to the triangle inequality theorem, the sum of any two sides of a triangle is greater than the third side.
We have inequalities:
- 6 + 7 > x ⇒ x < 13
- 6 + x > 7 ⇒ x > 1
- 7 + x > 6 ⇒ x > - 1
The common solution is:
