If a square room has a floor with an area of 289 square feet, how long is each side of the floor?
The area of a square can be calculated by squaring the length of one of its sides.
Let's assume the length of each side of the square room's floor is "x" feet. The equation for the area of the square is then x * x = 289 square feet.
Simplifying the equation, we have x^2 = 289.
Taking the square root of both sides of the equation, we find that x = √289.
The square root of 289 is 17.
Therefore, each side of the floor is 17 feet long.