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anonymous

  • one year ago

A candy bar box is in the shape of a triangular prism. The volume of the box is 3,240 cubic centimeters. A triangular prism is shown with base of triangle labeled 24 cm, sides of the triangle labeled 15 cm, and length of the box equal to 30 cm. Part A: What is the height of the box? Show your work. (5 points) Part B: What is the approximate amount of cardboard used to make this candy box? Explain how you got your answer. (5 points)

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @Mertsj or anyone else lol

  3. anonymous
    • one year ago
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    ok so the hight is 15? im confused sry

  4. anonymous
    • one year ago
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    @Loser66

  5. anonymous
    • one year ago
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    ok so what would i write for Part A?

  6. anonymous
    • one year ago
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    @Loser66

  7. anonymous
    • one year ago
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    @Mertsj @Mertsj @Mertsj @Mertsj

  8. Loser66
    • one year ago
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    That is the height of the triangle, not the height of the triangular prism. The height of the triangular prism is 30 I don't get it. Let's get help @ganeshie8

  9. anonymous
    • one year ago
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    @ganeshie8

  10. Loser66
    • one year ago
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    @ganeshie8 What is wrong with this? the height of the prism =30, the triangle base has the height (h_1)= 9 Volume of the prism is \(V= \dfrac{1}{2} Area_{base}*h= \dfrac{1}{2}*{\dfrac{1}{2}*24*9}*30= 1620\) But the given information gives us Volume of the prism is 3240 which is double with what I have. What is wrong with my calculation???

  11. anonymous
    • one year ago
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    well do you think you could help with this one then? An image of a prism is shown below: A square prism is shown. Part A: A cross section of the prism is cut with a plane parallel to the base. What is the name of the shape created by the cross-section? (5 points) Part B: If a cross section of the prism is cut diagonal to the base, what would be the shape of the resulting cross section? (5 points)

  12. Loser66
    • one year ago
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    If I go another way, I got right answer with taking the base is the rectangular Hence the Area of the rectangular is 24*30 = 720 \(V = (1/2) *720 *h= 3240\) hence h = 9.

  13. Loser66
    • one year ago
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    But ,they MUST be the same while the measure of the sides are the same, right? What is wrong with the first logic???

  14. anonymous
    • one year ago
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    idk

  15. Loser66
    • one year ago
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    the net is too bad. I am waiting for ganeshie8 or someone else check the mistake.

  16. Loser66
    • one year ago
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    @zzr0ck3r

  17. anonymous
    • one year ago
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    @mathmate

  18. anonymous
    • one year ago
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    @mathmate please help with both questions!!! 5 medals i will give in some way :)

  19. ganeshie8
    • one year ago
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    for the main question, 30 is indeed the height of triangular prism as it is the distance between bases; the teacher who cooked up this problem seems to be careless, not honoring the usual terminology. he is wrongly using "height of prism" to refer to "height of base triangle"

  20. ganeshie8
    • one year ago
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    \[\large h^2+12^2 = 15^2 \implies h = 9 \] |dw:1437540265309:dw|

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