The surface area of the table top of a square is 110.25 inches square. What are the dimensions of the top of the table?

If the tabletop is square then the formula is A = s^2 where s is the side length

110.25 = s^2

take the square root of each side

sqrt (110.25) = sqrt (s^2)

10.5 = s

The table is 10.5 inches by 10.5 inches