Answer:
20 feet is the answer border = 5 + 5+ 5+ 5
The border = the sum that makes the perimeter
= 5 +5+5+5 = 20feet.
This is because 25 feet square is the area 5 x 5 = 25.
And that there were 25 carpet tiles spoken of.
Explanation:
the border would be 20 feet
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