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ayeitsdrew

Find the lateral area of the cone. Use 3.14 for pi and round the result to the nearest whole unit. 1,319 cm2 2,639 cm2 707 cm2 2,026 cm2

  • one year ago
  • one year ago

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  1. ayeitsdrew
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    • one year ago
  2. ayeitsdrew
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    can anybody help me?

    • one year ago
  3. ayeitsdrew
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    @whpalmer4 @wolfgirl @Will679 @whadduptori @wow123456 @wiseworld

    • one year ago
  4. wolfgirl
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    The lateral area of a cone would be: One half of circumference of the base multiplied by the slant height. Basically- 1/2 [( Pi x D) x Slant height) Where "D" is the diameter of the base of the cone. (Pi x D) is the Circumference of the base Slant height - Length of a line from the base to the top of a prism, shape, etc.

    • one year ago
  5. ayeitsdrew
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    so would it be 3.14 x 30

    • one year ago
  6. ayeitsdrew
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    30 being diameter

    • one year ago
  7. wolfgirl
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    yes. that is correct.

    • one year ago
  8. ayeitsdrew
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    so that would be 94.2 and then you take that times the slant height whjich is 28 right?

    • one year ago
  9. ayeitsdrew
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    and after being 1/2 and multiplied by 28 i got 1318.8

    • one year ago
  10. wolfgirl
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    That's correct.

    • one year ago
  11. ayeitsdrew
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    ok thx for the help

    • one year ago
  12. wolfgirl
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    No problem!

    • one year ago
  13. ayeitsdrew
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    Find the surface area of the cone to the nearest whole unit. do you do this one relativwely the same or is it different?

    • one year ago
  14. ayeitsdrew
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    sorry mis typed that

    • one year ago
  15. ayeitsdrew
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    226 in2 88 in2 377 in2 138 in2 those are the possible answers

    • one year ago
  16. wolfgirl
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    Okay, cones and pyramids are relatively different. The formula for this one would be SA=3.14rs+3.14r^2

    • one year ago
  17. ayeitsdrew
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    ok so 3.14 times the radius?

    • one year ago
  18. ayeitsdrew
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    wait no 3.14 x r x r

    • one year ago
  19. wolfgirl
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    3.14 x r x s r=4 s=7

    • one year ago
  20. ayeitsdrew
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    ohhh

    • one year ago
  21. ayeitsdrew
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    87.92

    • one year ago
  22. wolfgirl
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    Yes, that's right.

    • one year ago
  23. ayeitsdrew
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    and then do you add that to 3.14 x 4 x 4

    • one year ago
  24. ayeitsdrew
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    which is 50.24

    • one year ago
  25. wolfgirl
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    yes

    • one year ago
  26. ayeitsdrew
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    ok so the answer is 138.16

    • one year ago
  27. wolfgirl
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    Yup, you got it :)

    • one year ago
  28. ayeitsdrew
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    thx!

    • one year ago
  29. wolfgirl
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    Anytime!

    • one year ago
  30. ayeitsdrew
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    bye!!

    • one year ago
  31. wolfgirl
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    Haha bye!

    • one year ago
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