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redheadangel

  • one year ago

The cross-sectional area parallel to the bases of the two figures above is the same at every level. Find the volume of the cone, to the nearest tenth.

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  1. redheadangel
    • one year ago
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  2. redheadangel
    • one year ago
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    I have no idea where to even start

  3. redheadangel
    • one year ago
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    @Peaches15 @LexiLuvv2431

  4. redheadangel
    • one year ago
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    @campbell_st

  5. redheadangel
    • one year ago
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    @welshfella

  6. anonymous
    • one year ago
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    I suckkk at math. I can't really help you here :/ sorry

  7. redheadangel
    • one year ago
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    that's okay thanks tho :) @LexiLuvv2431

  8. anonymous
    • one year ago
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    @redheadangel I don't know dis kin of math sorry

  9. redheadangel
    • one year ago
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    That's okay thanks @Peaches15

  10. redheadangel
    • one year ago
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    @Kitten_is_back

  11. redheadangel
    • one year ago
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    @Hero ppppplleasssee I will fan and medal I promise

  12. itsmichelle29
    • one year ago
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    Volume cone v =1/3 pi r^2 * h

  13. itsmichelle29
    • one year ago
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    Volume Triangular pyramid v=1/3 b*h

  14. redheadangel
    • one year ago
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    Yes, I am just confused on how to find all of the measurments for the cone

  15. redheadangel
    • one year ago
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    @Owlcoffee p.l.e.a.s.e and t.h.a.n.k y.o.u

  16. redheadangel
    • one year ago
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    @DanJS g.r.a.c.i.a.s

  17. Owlcoffee
    • one year ago
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    Okay, this is a little tricky one, but I think I have fully understood it. On the left side we have a pyramid that has a triangular base and on the right side, a cone which has a circular base. Both heights are the same, and we are given some information about the base of the pyramid, you can view it as a triangle which you'll have to find the missing side: |dw:1438983224810:dw| So, try finding the area of that triangle and that'd be the first step on getting it solved. Because we know, as given information, that the area of the base on the pyramid is the same as the area of the base on the cone.

  18. redheadangel
    • one year ago
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    so for the missing side I got 3.6

  19. redheadangel
    • one year ago
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    I got that the area 8.64... is that right?

  20. redheadangel
    • one year ago
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    @Owlcoffee

  21. redheadangel
    • one year ago
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    @geerky42 perhaps you could help?

  22. geerky42
    • one year ago
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    If cross-sectional areas are same for every level, this means they both have same height and same volume, right?

  23. redheadangel
    • one year ago
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    yes

  24. geerky42
    • one year ago
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    So you just need to find volume of triangle pyramid.

  25. redheadangel
    • one year ago
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    ooohhh I see

  26. geerky42
    • one year ago
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    So can you handle it from here?

  27. redheadangel
    • one year ago
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    Yes thank you so much I got 44.16 as the area

  28. redheadangel
    • one year ago
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    would you mind helping me with one more?

  29. geerky42
    • one year ago
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    you need volume; formula is \(V=\dfrac{1}{3}Bh\) B is area of base

  30. redheadangel
    • one year ago
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    oh my gosh you're right idk what i was thinking lol

  31. redheadangel
    • one year ago
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    Yes I meant to say that, the volume is 44.16, just typed the wrong thing

  32. geerky42
    • one year ago
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    well, I got 26.496 cm\(^3\)

  33. geerky42
    • one year ago
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    did you multiply 4.8 by 6? because you shouldnt

  34. redheadangel
    • one year ago
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    honestly I typed it into one of those volume calculators and thats what it came up with

  35. redheadangel
    • one year ago
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    but your answer is one of the answer choices, so maybe mine was wrong

  36. geerky42
    • one year ago
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    for area of triangle, you need base and height. 4.8 can be height, so you need to find length of base. You can use Pythagorean theorem here.

  37. geerky42
    • one year ago
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    |dw:1438984981177:dw|

  38. redheadangel
    • one year ago
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    I got 3.6 as the missing side

  39. geerky42
    • one year ago
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    same here

  40. geerky42
    • one year ago
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    you should get my answer from here

  41. redheadangel
    • one year ago
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    so I got 8.64 as the area for the triangle/base

  42. geerky42
    • one year ago
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    yep

  43. redheadangel
    • one year ago
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    oh you're right! I got your answer, thanks soooo much.

  44. geerky42
    • one year ago
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    np, you need help with one more?

  45. redheadangel
    • one year ago
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    Yes please :)

  46. redheadangel
    • one year ago
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    1) Given 2) Definition of bisector 3) Transitive property of congruence 4) Definition of a right triangle 5) HL theorem B. 1) Given 2) Given 3) Transitive property of congruence 4) Definition of a right triangle 4) HL theorem C. 1) Given 2) Definition of bisector 3) Reflexive property of congruence 4) Definition of a right triangle 5) HL theorem D.

  47. redheadangel
    • one year ago
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    ugh for some reason the attachment for the chart isn't showing

  48. geerky42
    • one year ago
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    Can you take screenshot?

  49. redheadangel
    • one year ago
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    oh yeah! one sec

  50. redheadangel
    • one year ago
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  51. redheadangel
    • one year ago
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    I was thinking A, but it's really confusing and a lot to take in lol

  52. geerky42
    • one year ago
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    what is D? or at least number 2 in D

  53. redheadangel
    • one year ago
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    D says not enough information.

  54. redheadangel
    • one year ago
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    I pretty much ruled that option out

  55. geerky42
    • one year ago
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    give me time, it has been a while lol

  56. geerky42
    • one year ago
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    I believe it's C. number 3 is basically "if a=b and b=c, then a=c"

  57. redheadangel
    • one year ago
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    np

  58. geerky42
    • one year ago
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    C seems reasonable here.

  59. geerky42
    • one year ago
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    wait I am wrong hold on

  60. geerky42
    • one year ago
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    oh i am looking at A. so yeah I would go with A.

  61. redheadangel
    • one year ago
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    Okay thank you!

  62. geerky42
    • one year ago
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    No problem

  63. redheadangel
    • one year ago
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    you have been so very helpful so please don't be mad when I say I have a very short problem that requires very little thinking for someone as smart as you.... What is the relationship between theoretical probability and experimental probability (think in terms of flipping a coin)? A. The theoretical probability is always greater than the experimental probability. B. As the number of trials increase, the experimental probability gets closer to the theoretical probability. C. They are always very close to each other. D. The theoretical probability is always less than the experimental probability

  64. redheadangel
    • one year ago
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    I understand if you have other matters to atttend to

  65. geerky42
    • one year ago
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    What do you think? Basically: theoretical probability is what you expect to happen experimental probability is what it actually happened. Saying you have to flip coin. 50% is theoretical probability. For first trial, you get head, so you have 100% head and 0% tail. this is experimental probability

  66. geerky42
    • one year ago
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    do 3 trials, you get 2 heads and 1 tails. so you have about 66% change to get head in experimental probability. that makes sense?

  67. redheadangel
    • one year ago
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    then.... I would say B

  68. geerky42
    • one year ago
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    Yeah I would go with B.

  69. redheadangel
    • one year ago
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    Thanks again!!!

  70. geerky42
    • one year ago
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    no problem lol

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