Determine the value of y if x is -11.
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Answer:
Let the measure of each side of the square be " x " cm.
then ,
area of square = x²
After we folded the square into a rectangle ,
length of rectangle = x
breadth of rectangle = x/2
perimeter of rectangle = 36 cm
hence ,
side of square = 12 cm
therefore ,
area of square = 12 × 12 = 144 cm²
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