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anonymous

  • one year ago

1.) Use the formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. The figure is not drawn to scale.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    My answer: 795 m^2, 822m^2. Is that correct?

  3. anonymous
    • one year ago
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    2.) Find the surface area of the cylinder to the nearest whole number. The figure is not drawn to scale.

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  4. anonymous
    • one year ago
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    my answer: 2,205 in^3. Is that correct?

  5. anonymous
    • one year ago
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    elllloooooooooooooooooooooooo?

  6. anonymous
    • one year ago
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    @jim_thompson5910

  7. anonymous
    • one year ago
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    @mathstudent55

  8. anonymous
    • one year ago
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    @e.mccormick

  9. anonymous
    • one year ago
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    @aaronq

  10. anonymous
    • one year ago
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    @Mertsj @jdoe0001

  11. anonymous
    • one year ago
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    @sammixboo

  12. anonymous
    • one year ago
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  13. anonymous
    • one year ago
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  14. anonymous
    • one year ago
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    @ikram002p

  15. anonymous
    • one year ago
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    @DullJackel09

  16. anonymous
    • one year ago
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    @mathstudent55 can you stay? There has been many incidents where people have left.

  17. anonymous
    • one year ago
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    @jim_thompson5910 If he leaves, please stay

  18. mathstudent55
    • one year ago
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    For the first triangular prism you are correct.

  19. anonymous
    • one year ago
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    Alright. Thank you.

  20. mathstudent55
    • one year ago
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    For the cylinder you are correct.

  21. anonymous
    • one year ago
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    Thank you, again. Can one of you stay for just one more to correct?

  22. jim_thompson5910
    • one year ago
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    I'm getting the same LSA = 3*37+9*37+9.49*37 = 795.13 TSA = BA + LSA = 2*(9*3/2) + 795.13 = 822.13

  23. mathstudent55
    • one year ago
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    But for cylinder, remember the units are in.^2. You are dealing with an area, not a volume.

  24. anonymous
    • one year ago
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    Oh right.

  25. anonymous
    • one year ago
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    @jim_thompson5910 can you stay

  26. jim_thompson5910
    • one year ago
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    sure

  27. anonymous
    • one year ago
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    Okay, thank you.

  28. jim_thompson5910
    • one year ago
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    I agree with your cylinder answer too 2*pi*13^2+2*pi*13*14 = 2,205.39804282003

  29. anonymous
    • one year ago
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    Next question. Use Euler's formula to find the missing number. vertices:15 edges:24 faces:? My answer: 11. Is that correct?

  30. mathstudent55
    • one year ago
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    V + F - E = 2

  31. jim_thompson5910
    • one year ago
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    yes, you use V - E + F = 2 to find that F = 11

  32. mathstudent55
    • one year ago
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    15 + F - 24 = 2 F - 9 = 2 F = 11 Correct.

  33. anonymous
    • one year ago
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    Yay. Thank you guys again. : )

  34. jim_thompson5910
    • one year ago
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    yw

  35. mathstudent55
    • one year ago
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    You're welcome.

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