Question 1138605
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The "examining" area?  Really now -- you should look at what you have written before you post your question.<br>
From the context of the problem, it is clear that you mean the REMAINING area is 112cm^2....<br>
You don't need algebra to solve this problem.<br>
The difference between the length and width is 6cm; if the strip cut off is uniform, then the length and width of the remaining rectangular piece of tin will still differ by 6cm.<br>
So look for a way to factor 112 as the product of two integers whose difference is 6.<br>
Even without having any insight into the answer, a little trial and error should find the new dimensions to be 14cm by 8cm.<br>
So the width and length have both been shorted by 1cm; since the uniform strip was cut off on all four sides, the width of the strip is 0.5cm.