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LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a box that is 5in x 7in x 3in?
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LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a box that is 5in x 7in x 3in?
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Oct 4, 2017
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LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a box that is 5in x 7in x 3in?
Mathematics
high-school
Rdp
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Just find the surface area. 5*7=35, but 35*2=
7
0
, because the top and bottom. Then do 7*3*2=
42
, for 2 parallel sides, and then 3*5*2=
30.
Now add 70+30+42=142 square inches. There's your answer.
Roundcrisis
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Oct 9, 2017
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Roundcrisis
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