Respuesta :
Solution:
We know that:
- Given side lengths of triangle: 16 units, 9 units, and 7 units
- The sum of two sides must be greater than the third.
Verification:
Let's verify the side lengths of the triangle.
- => 16 + 9 > 7 => 25 > 7 (True)
- => 16 + 7 > 9 => 23 > 9 (True)
- => 9 + 7 > 16 => 16 > 16 (False)
Conclusion:
The following side lengths cannot be a triangle.
The rule is
Sum of any two sides must be greater than the third side
- 16+9=25>7
- 7+16=23>9
- 7+9=16
They can't be a triangle