As it is emphasized above, the area (A) of a square is the square of its sides (l), A = l² The area of the square should be 120 ft². Substituting this to the equation, 120 ft² = l² Solving will give us an answer of l being approximately equal to 10.95 ft.
The answer to this is 19. The reason why is because the median falls between 18 and 20. After that, you have to take the middle number that falls between 18 and 20. In this case, 19.
