the perimeter of a rectangular yard is completely surrounded by a fence that measures 12 meters. what is the length of the yard if the area of the yard is 9 meters squared?  Select the correct option.
A) 8	B) 1	C) 3	D) 4	E) 6
<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<result>B</result>
the perimeter of a rectangular yard is completely surrounded by a fence that measures 12 meters. what is the length of the yard if the area of the yard is 9 meters squared?
subtract(const_4, const_3)
perimeter of rectangular yard = 2 ( l + b ) = 12 - - > l + b = 6 area = l * b = 9 b = 6 - l l ( 6 - l ) = 9 6 l - l ^ 2 = 9 l ^ 2 - 6 l + 9 = 0 upon simplifying we get l = 3 . answer : b