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What is the surface area of the box that will be formed?

What is the surface area of the box that will be formed?-example-1
User Vandenman
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1200 because if you multiply 25x10 you get 250 and that gets you one side. There are 4 sides so it would be 1000 and do the same for the 2 squares 10x10 is 100 times 2 because there are 2 and add 1000 plus 200 is 1200 being the total surface area
User Brad Folkens
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