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janessia

Find the volume of a cone with radius = 3 m and height = 10 m. Round your answer to the nearest m3. Choose one answer. a. 30 m^3 b. 90 m^3 c. 94 m^3 d. 283 m^3

  • one year ago
  • one year ago

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  1. janessia
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    @jim_thompson5910

    • one year ago
  2. jim_thompson5910
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    Area of the base = ???

    • one year ago
  3. janessia
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    with area of a circle do i use pi?

    • one year ago
  4. jim_thompson5910
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    |dw:1354916030577:dw|

    • one year ago
  5. jim_thompson5910
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    yes all circle equations use pi

    • one year ago
  6. jim_thompson5910
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    do you know the area of a circle formula?

    • one year ago
  7. janessia
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    is it 28.26?

    • one year ago
  8. jim_thompson5910
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    close enough, now multiply this by the height

    • one year ago
  9. janessia
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    oh A=pi*r^2 right?

    • one year ago
  10. jim_thompson5910
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    yes

    • one year ago
  11. janessia
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    k

    • one year ago
  12. janessia
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    282.6

    • one year ago
  13. janessia
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    283

    • one year ago
  14. jim_thompson5910
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    now divide this by 3

    • one year ago
  15. janessia
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    oh 94.2

    • one year ago
  16. janessia
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    or 94

    • one year ago
  17. jim_thompson5910
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    a cone is a pyramid (a special type of pyramid---with a circular base)

    • one year ago
  18. jim_thompson5910
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    yep

    • one year ago
  19. janessia
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    thank you soo much!!

    • one year ago
  20. jim_thompson5910
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    np

    • one year ago
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