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The floor could be
9 by 5
or
15 by 3
9 by 5
or
15 by 3
A rectangle can be divided into rows and columns. Each row represents a horizontal arrangement of squares, while each column represents a vertical arrangement of squares.
Let's find the dimensions of the rectangle by finding two numbers that multiply together to give us 45. One possible pair of numbers is 5 and 9, as 5 * 9 = 45.
So, there are 5 squares in each row and 9 squares in each column. Therefore, there are 5 squares in each row.