If Sanji wants to hang a curtain along one full side of the room, then the length of the curtain is 10.625 feet.
Perimeter is the sum of the length of the sides used to make the given figure.
Given that the perimeter of the square room is 42.5 feet. Therefore, the length of the side of a wall is,
Perimeter of the square room = 4 × (Length of room's wall)
42.5 feet = 4 × Length of room's wall
Length of room's wall = 42.5 feet / 4
Length of room's wall = 10.625 feet
Hence, if Sanji wants to hang a curtain along one full side of the room, then the length of the curtain is 10.625 feet.
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