mary wants to wrap a present. the present is in the shape of a box with length of 6 inches, height of 3 inches and width of 9 inches. she only has 190 square inche of wrapping paper. does she have enough paper?
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Expert's answer
2013-02-15T06:23:50-0500
Here we must calculate the area of box surface. The box has 6 faces, each face is rectangular. Let’s calculate the area of each and sum: 3*6+3*6+3*9+3*9+6*9+6*9=198 & As we can see, we need at least 198 square inches of wrapping paper to wrap, but we have only 190. That’s why Mary doesn’t have enough paper. Answer: Mary doesn’t have enough paper
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