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anonymous

  • one year ago

The volume of a cone is 62.8 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? Use π = 3.14.

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  1. anonymous
    • one year ago
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    @mathmath333

  2. anonymous
    • one year ago
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    @ganeshie8

  3. anonymous
    • one year ago
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    @Rushwr

  4. Rushwr
    • one year ago
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    \[V= \Pi r ^{3}\frac{ h }{ 3 }\]

  5. Rushwr
    • one year ago
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    This is the volume of the cone . We just have to substitute the numbers here !

  6. anonymous
    • one year ago
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    ok!

  7. welshfella
    • one year ago
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    Volume of a cone = (1/3) pi r^2 h where r = radius and h = height so plug in the given values 62.8 = (1/3) * 3.14 * r^2 * 15 solve for r

  8. Rushwr
    • one year ago
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    Since they have asked us the radius in inches no need to convert the height and the radius in to meters.

  9. welshfella
    • one year ago
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    @Rushwr - is that a typo ? r^2 not r^3

  10. anonymous
    • one year ago
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    ok i get it just trying to figure it out

  11. Rushwr
    • one year ago
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    oh pellet sorry

  12. Rushwr
    • one year ago
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    human error kid ! it is r^2

  13. Rushwr
    • one year ago
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    Sorry abwt tht! I actually thought I typd 2

  14. welshfella
    • one year ago
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    don't worry we all do it sometimes...

  15. Rushwr
    • one year ago
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    So at the end the answer would be 2 inches !

  16. welshfella
    • one year ago
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    yes

  17. anonymous
    • one year ago
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    alright i got the answer thanks a lot guysss

  18. welshfella
    • one year ago
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    yw

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