SOLUTION: What is the length of a side of a square if the area and perimeter are numerically equal?

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Question 160729: What is the length of a side of a square if the area and perimeter are numerically equal?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4*x=x^2
x^2-4x=0
x(x-4)=0
x=4 answer.
Proof:
4*4=4^2
16=16