SOLUTION: The area of the square is 81 square units. Find the length of a side. Can you explain this question?

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Question 469325: The area of the square is 81 square units. Find the length of a side. Can you explain this question?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a square is given by the equation A+=+s%5E2 where 's' is the length of the side.


So if A=81, then 81=s%5E2, which means that s=sqrt%2881%29=9. So s=9 telling us that the length of the side is 9 units.