Answer:
it is between 3 and 13 feet long
Step-by-step explanation:
The triangle inequality tells you the sum of the lengths of any two sides of a triangle must exceed the length of the third side.
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The result of that inequality is that the length of any given side lies between the sum and the difference of the lengths of the other two sides. In the given situation, the third side of the garden fence will be between 8-5 = 3 feet and 8+5 = 13 feet.
3 ft < length < 13 ft
