The total length of the railing is 48 feet
The area of the square deck is given as:
Area = 256 square feet
Take the square root of both sides to determine the length of the deck
Length = √256 feet
This gives
Length = 16 feet
He wants to cover three sides.
So, the total length is
Total = 3 * Length
Total = 3 * 16 feet
Total = 48 feet
Hence, the total length of the railing is 48 feet
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