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Mathematics 14 Online
OpenStudy (anonymous):

A rectangular field has an area of 1,764 m^2. The width of the field is 13 m more than the length. What is the perimeter of the field? a. 121 m b. 144 m c. 168 m d. 170 m

OpenStudy (anonymous):

x^2 + 13x = 1764 so x = -49 and 36, we take 36 as its the positive value. And the other side is 49. Now use 2(l+b) to find perimeter. You get (36+49)*2 = 170

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