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anonymous

  • 5 years ago

The solid is similar to a larger solid with the given scale factor. find the surface area and the volume of the larger solid

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    hm, well i answered your other question straight up, so if you can figure out how i got that, then you might be able to do this...

  3. anonymous
    • 5 years ago
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    so you just have to multiply the volume by the scale left hand side and right hand side

  4. anonymous
    • 5 years ago
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    sorry divide by left side, multiply by right side... thats how scales work

  5. anonymous
    • 5 years ago
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    so for the rectangle, the new scale factor would be 9:27...

  6. anonymous
    • 5 years ago
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    well you only need the volume right? so take the volume of the rectangle prism (495) then divide by 1 and multiply by 3 because its 1:3

  7. anonymous
    • 5 years ago
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    i need the surface area and volume

  8. anonymous
    • 5 years ago
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    is that whats on the side? S and V?

  9. anonymous
    • 5 years ago
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    yea

  10. anonymous
    • 5 years ago
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    ok so you only need to use those and the scale to work it out... so say i have a S=6 and scale 2:6 my S=(6/2)*6=18 can you relate that to the question you have??

  11. anonymous
    • 5 years ago
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    so i would do (3/1)*398

  12. anonymous
    • 5 years ago
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    no, you would do (398/1)*3

  13. anonymous
    • 5 years ago
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    i chose bad numbers, which were easy to mix up sorry

  14. anonymous
    • 5 years ago
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    so the surface area would =1194in^2

  15. anonymous
    • 5 years ago
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    yes

  16. anonymous
    • 5 years ago
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    would it be the same for volume?

  17. anonymous
    • 5 years ago
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    yeah, you do it the same way. cause they already gave you the volume, just in the wrong scale... so its (495/1)*3 which i know you can do... so what is the answers for teh rectangle?

  18. anonymous
    • 5 years ago
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    1485in^3

  19. anonymous
    • 5 years ago
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    yeah, but what about the other picture... can you tell me the answers for that? you just do it the same way.

  20. anonymous
    • 5 years ago
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    (144*pi/3)*2=301.44cm^2

  21. anonymous
    • 5 years ago
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    thats not the same way.

  22. anonymous
    • 5 years ago
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    oh wait, is that blurry thing pi? if so then yeah thats right

  23. anonymous
    • 5 years ago
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    it says 144 pi cm^2 for the surface doesn't it?

  24. anonymous
    • 5 years ago
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    yea it is

  25. anonymous
    • 5 years ago
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    ok cool, you got it congrats :)

  26. anonymous
    • 5 years ago
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    (288*pi/3)*2=602.88cm^3

  27. anonymous
    • 5 years ago
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    oh no its ((144*pi)/2)*3 sorry... so close, but it was just a small error

  28. anonymous
    • 5 years ago
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    Surface are= 678.24cm^2

  29. anonymous
    • 5 years ago
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    yep, final answer :)

  30. anonymous
    • 5 years ago
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    volume=1356.48cm^3

  31. anonymous
    • 5 years ago
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    yes. what are you in like grade 8? doing better than i was then...

  32. anonymous
    • 5 years ago
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    no

  33. anonymous
    • 5 years ago
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    lower grade?

  34. anonymous
    • 5 years ago
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    im actually a senior

  35. anonymous
    • 5 years ago
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    i'd count grade 8 as senior :( scales took me ages was my point anwyay

  36. anonymous
    • 5 years ago
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    oh okay

  37. anonymous
    • 5 years ago
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    and you got the powers right which was pretty cool :P

  38. anonymous
    • 5 years ago
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    thank you for ur help

  39. anonymous
    • 5 years ago
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    no problem

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