The length of one side of the table is 20 inches
How to determine the length of one side?
The area is given as:
Area = 400 square inches
According to the figure, the table is a square
So, the area of the figure is
Area = Length^2
This gives
Length^2 = 400
Take the square root of both sides
Length = 20
Hence, the length of one side of the table is 20 inches
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