SOLUTION: When Bully folds a square piece of paper in half either horizontally or vertically, the resulting rectangle has a perimeter of 39 cm. In square centimeters, what is the area of the

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Question 715803: When Bully folds a square piece of paper in half either horizontally or vertically, the resulting rectangle has a perimeter of 39 cm. In square centimeters, what is the area of the original square piece of paper that Bully folded? What are the dimensions of the rectangle and the original square?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let the sides of the square paper = +s+
When folded in half, the rectangle now has
sides = +s+, +s+, +s%2F2+, +s%2F2+
given:
+s+%2B+s+%2B+s%2F2+%2B+s%2F2+=+39+ cm
+3s+=+39+
+s+=+13+
The area of the original square is
+A+=+s%5E2+
+A+=+13%5E2+
+A+=+169+ cm2
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The rectangle is +s+ x +s%2F2+ = 13 x 6.5
The original square is 13 x 13