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anonymous

  • one year ago

Last question I need help on for tonight.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Part A: Which is the correct net for the prism? Explain your answer. (2 points) Part B: Write the measurements of Sides AB, BC, and CD of the correct net. (4 points) Part C: What is the surface area of the prism? Show your work. (4 points)

  3. anonymous
    • one year ago
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    i believe net a is the correct net for the prism btw

  4. DanJS
    • one year ago
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    yes, fold it up in your mind

  5. anonymous
    • one year ago
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    Yes its net A

  6. anonymous
    • one year ago
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    How would i go about doing part B?

  7. DanJS
    • one year ago
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    yes, then write the corresponding measurements on it

  8. DanJS
    • one year ago
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    like, AB is 3 in

  9. DanJS
    • one year ago
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    CD = 9.4 in BC you have to use pythagorean theorem to get

  10. DanJS
    • one year ago
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    THe sides of that right triangle are 3 and 4, so the hypotenuse side is root(3^2 + 4^2) = root 25 = 5 It is a 3-4-5 triangle

  11. DanJS
    • one year ago
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    oh, the 5 is on the drawing, i missed it

  12. anonymous
    • one year ago
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    so bc=5

  13. DanJS
    • one year ago
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    yea

  14. anonymous
    • one year ago
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    how do i find the area?

  15. anonymous
    • one year ago
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    3*9.4*5*1/2?

  16. DanJS
    • one year ago
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    total up the areas of every side...

  17. DanJS
    • one year ago
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    3 rectangles and 2 triangles Area Rectangle = Length x Width Area Triangle = 0.5 x base x height

  18. anonymous
    • one year ago
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    so 37.6 is the area of the rectangle and 15 is the area of the triangle

  19. DanJS
    • one year ago
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    Rectangles: 9.4*4 + 9.4*5 + 9.4*3 = .. Triangles: 0.5 * 4 * 3 + 0.5 * 4 * 3

  20. DanJS
    • one year ago
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    add all those up for the total surface area

  21. anonymous
    • one year ago
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    0.5 is 1/2 right?

  22. DanJS
    • one year ago
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    yea

  23. anonymous
    • one year ago
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    i got 112.8 and 6

  24. anonymous
    • one year ago
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    so the total area is 118.8

  25. DanJS
    • one year ago
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    yeah the area of 1 triangle is 6, but there are 2

  26. DanJS
    • one year ago
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    add 6 more ,, and you are good

  27. anonymous
    • one year ago
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    130.8

  28. DanJS
    • one year ago
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    112.8 + 12 = 124.8 in^2 total surface area

  29. anonymous
    • one year ago
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    oh yes i forgot to start from 112.8

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