Helen is using glass tiles that each measure one square centimeter to make a decorative square plate. The plate will use 144 square centimeters of glass tiles.
How many glass tiles will Helen use in one row of her plate?
Since each glass tile measures one square centimeter, the number of glass tiles in one row of the plate will be the square root of the total area of the plate.
This means the square root of 144, which equals 12.
Therefore, Helen will use 12 glass tiles in one row of her plate.