A square has one side with length 4.5 feet. The area of the square is

`_________`

.A square has one side with length 4.5 feet. The area of the square is

`_________`

.Detailed Explanation

Squares have 4 sides that are the same length, and the area of a square is equal to its side squared, in this case 4.5*4.5, which is equal to 20.25.