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Jon93c

  • 2 years ago

Geometry help please Malcolm bought a square sheet of paper of side 16 inches to decorate a pencil box he made in craft class. The pencil box has a height of 7 inches, a width of 4 inches, and a length of 5 inches. Approximately how many square inches of paper will be remaining if he pastes paper on to the bottom base and the four side surfaces of the pencil box without any overlap?

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  1. hoblos
    • 2 years ago
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    area of paper = 16^2 =256 in^2 area to be covered = 2(7*4 + 7*5) + 4*5 = 146 in^2 remaining part = 256-146 = 110 in^2

  2. Mertsj
    • 2 years ago
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    Bottom: 2(4 X 5)=40 front and back: 2(4 X 7)=56 right side and left side: 2(5 X 7)=70 Total: 40+56+70=146 Total sheet = 16X16 = 256 Left over: 256-146=110

  3. Mertsj
    • 2 years ago
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    |dw:1331301483501:dw|

  4. Jon93c
    • 2 years ago
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    thanks guys

  5. Mertsj
    • 2 years ago
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    yw

  6. hoblos
    • 2 years ago
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    yw =)

  7. tercespot
    • 2 years ago
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    just had to point out that you said 70+56+40=146....it doesn't..it equals 166...that changes the answer to 90

  8. tercespot
    • 2 years ago
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    but the answer is 110 becuase it does not say include the top..but the math was wrong

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