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Posted by on Sunday, January 2, 2011 at 4:44pm.

if the sides of a square are increased by 5 cm the area of the new square is four times the area of the original square. Find the length of a side of the original square.

  • math - , Monday, January 3, 2011 at 10:18am

    Let x = side of square.

    (x+5)^2 = 4x^2

    Solve for x.

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