Final answer:
When making a rectangular run, Shana should balance the length and width to make efficient use of her 62 feet of fencing. The specific measurements depend on her yard's constraints and her dog's needs.
Step-by-step explanation:
Shana has a total of 62 feet of fencing at her disposal to construct a rectangular dog run. The fact that the run is to be rectangular gives us two sides (length and width). To make the most efficient use of the fence, Shana should aim to balance these measurements, as a rectangular shape with equal or nearly equal sides (a square) offers the largest area for a given perimeter. However, the exact measurements Shana chooses for the sides depend on the specific needs and constraints of her yard. For example, if Shana has an area that is long and narrow, she might choose to make a longer, narrower dog run. It is also worth noting that she needs to consider the size of her dog and how much running space it requires.
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