Respuesta :
The square root of 256 is 16 and since its a square all sides are equal so the length of the room is 16 ft...
Area of Square Living room=256 feet²
Area of Square=(Side)²
⇒(Side)²=256 feet²
→(Side)²=(16 feet)²
→Side=16 feet
That is, Length of Room=16 feet