The perimeter of the square

16√10

Step-by-step explanation:

The key word here is "square."  The four sides of this square are of equal length.  If you find the length of any one side, you automatically know the lengths of the remaining three sides.  Using the distance formula to find the distance between points T and V, we find that it is √160 = (√16)(√10), or 4√10.

Since the square has four (equal) sides, we multiply this result by 4 to get the perimeter:  P = 4(4√10) = 16√10

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