SOLUTION: square pic has an area of 225" squared. What is the side length of the picture? Please show how you got this answer

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Question 643754: square pic has an area of 225" squared. What is the side length of the picture?
Please show how you got this answer

Answer by Alan3354(69443) About Me  (Show Source):
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square pic has an area of 225" squared. What is the side length of the picture?
Please show how you got this answer
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15*15 = 225