SOLUTION: three square are put side to form a rectangle.If the perimeter of the rectangle is 48 inches? What is the side of the square?

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Question 711610: three square are put side to form a rectangle.If the perimeter of the rectangle is 48 inches? What is the side of the square?
Answer by god2012(113) About Me  (Show Source):
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Solution:
Let 'a' be the side of the square .
When 3 squares are joined together to form a rectangle, they have to be arranged in such a way that one of the sides of the square is in contact with a side of another.
Therefore, perimeter of rectangle = top + bottom + 3 * 1 side of sq + 3*1 side of sq
Perimeter = a + a + 3a + 3a = 8a = 48
or a = 6 in