SOLUTION: Find the perimeter of a square whose area is 144 inches square?

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Question 333855: Find the perimeter of a square whose area is 144 inches square?
Found 2 solutions by rfer, jim_thompson5910:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
12*12=144
2*12+2*12=48 in

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
A=s%5E2 Start with the area of a square formula.


sqrt%28A%29=s Take the square root of both sides (note: we're only taking the positive square root since a negative length doesn't make sense).


s=sqrt%28A%29 Flip the equation.


s=sqrt%28144%29 Plug in A=144 (the given area).


s=12 Take the square root of 144 to get 12.


So if a square has an area of 144 square inches, then it has a side length of 12 inches.

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P=4s Now move onto the perimeter of a square formula.


P=4%2812%29 Plug in s=12.


P=48 Multiply 4 and 12 to get 48.


So the perimeter of a square with a side length of 12 inches is 48 inches.


This means that if a square has an area of 144 square inches, this means that has a perimeter of 48 inches.