SOLUTION: If the area of a square has increased by a factor of 9, by how much has each side increased?

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Question 1015325: If the area of a square has increased by a factor of 9, by how much has each side increased?
Answer by ikleyn(52790) About Me  (Show Source):
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If the area of a square has increased by a factor of 9, by how much has each side increased?
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In a factor 3.

Do you know that 3*3 = 9?