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brookebarker813
for a square all the sides and angles are the same size (number) Since the area is 25 we only have to figure out one side because every side is the same. Now we have to find out what two of the same numbers equal 25. Like the square root of 25. The answer is 5 because 5 times 5 is 25. each side will be 5ft long

The side of Robert's square sandbox should be 5 ft.

Area of square

The area of a square is given by the square of the side.

[tex]\rm{Area\ of\ square = (side)^2[/tex]

Given to us

Area of the square sandbox = 25 ft²,

To find

The side of Robert's square sandbox

Side of Robert's square sandbox

The area of Robert's square sandbox,

Area of the square sandbox  = Area of square

[tex]25\ ft^2 = (side)^2\\[/tex]

Taking square root on both sides,

[tex]\sqrt{25\ ft^2} = side\\\\side=\sqrt{25\ ft^2}\\side = 5\ ft[/tex]

Hence, the side of Robert's square sandbox should be 5 ft.

Learn more about Area of square:

https://brainly.com/question/1658516