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anonymous

  • one year ago

In an isometric transformation, the preimage and image must not __________. A. change size B. rotate C. preserve angle measures D. reflect across the x-axis @H3LPN33DED @UsukiDoll @donmath1.2 @shanemc1010 @mathmate

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  1. anonymous
    • one year ago
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    D

  2. UsukiDoll
    • one year ago
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    I remembered what isometry is AND IT NOT D!

  3. UsukiDoll
    • one year ago
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    *IT IS NOT D!

  4. mathmate
    • one year ago
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    Let's analyze the word "isometric". iso = same metric = measure. So you can figure out what kind of transformation it is!

  5. UsukiDoll
    • one year ago
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    easy example for isometry consider a square... what shape does it have if I rotate it 90 degrees clockwise?

  6. UsukiDoll
    • one year ago
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    if I rotate a square 90 degrees clockwise then _____________

  7. anonymous
    • one year ago
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    it stays the same right?

  8. UsukiDoll
    • one year ago
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    think about dice. yes it does stay the same

  9. UsukiDoll
    • one year ago
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    a square rotated 90 degrees clockwise still retains the shape... I can rotate again and again and I will have that square

  10. anonymous
    • one year ago
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    so it doesnt need to preserve angle measures?

  11. UsukiDoll
    • one year ago
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    no.. isometry preserves the shape of an object.

  12. UsukiDoll
    • one year ago
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    the isometric transformations are nuts though...depending on what you are being presented.

  13. UsukiDoll
    • one year ago
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    isometric transformations <- glide reflection, translation, rotation, reflection

  14. UsukiDoll
    • one year ago
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    I remember reflecting and rotating a LOT when I did isometric transformations

  15. UsukiDoll
    • one year ago
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    so based on what I wrote, which choices can we throw out?

  16. anonymous
    • one year ago
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    A and B

  17. UsukiDoll
    • one year ago
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    We can throw out B because rotation is an isometric transformation...

  18. UsukiDoll
    • one year ago
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    there's one more answer choice that can be thrown out... remember what I wrote about the different isometric transformations ?

  19. UsukiDoll
    • one year ago
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    I mentioned that word twice.

  20. anonymous
    • one year ago
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    D

  21. UsukiDoll
    • one year ago
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    yes... consider the b d p q letter if I pick d then I can use vertical reflection d b and I have a b |dw:1435065852461:dw|

  22. UsukiDoll
    • one year ago
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    so we are left with A. change size C. preserve angles

  23. anonymous
    • one year ago
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    ok

  24. UsukiDoll
    • one year ago
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    This has something to do with the definition of Isometric Transformations. I only gave the definition of Isometry and that's preserve it's shape.. Isometric Transformation definition, however, tells us more AN Isometric Transformation is a transformation that preserves the distances and angles between an image and pre-image. In an Isometric Transformation the image is exactly the same size and shape as the pre-image.

  25. UsukiDoll
    • one year ago
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    do you see any terms that look familiar to your remaining choices?

  26. anonymous
    • one year ago
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    It would be A

  27. UsukiDoll
    • one year ago
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    yup because a shape that changes size is a non-isometric transformation.

  28. anonymous
    • one year ago
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    So a is correct

  29. anonymous
    • one year ago
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    did i earn a medal

  30. anonymous
    • one year ago
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    ???

  31. anonymous
    • one year ago
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    ok thanks

  32. UsukiDoll
    • one year ago
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    I want medals XD.

  33. UsukiDoll
    • one year ago
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    yay :D

  34. anonymous
    • one year ago
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    me too

  35. UsukiDoll
    • one year ago
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    @mathmate can give you one... but you kind of stole my stuff x(

  36. UsukiDoll
    • one year ago
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    wait what just happened? *scrolls up*

  37. anonymous
    • one year ago
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    no i stole googles stuff lol

  38. UsukiDoll
    • one year ago
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    O___________________________________o oh embarrassing XD It's probably because you two are orange so my mind was focused on something else and then your colors blended in.

  39. UsukiDoll
    • one year ago
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    you know what's weird. When I did my modeling project, my professor said just replicate it... like write it in my own words. I asked if it was plagiarism or a rip off. He was like as long as I don't republish the article, then it's fine. What the heck?

  40. mathmate
    • one year ago
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    @UsukiDoll :) thank you for your generosity. Your appreciation is sufficient!

  41. UsukiDoll
    • one year ago
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    I think rip offs are harder to find in Math because the result is the same whereas in English you can tell based on the sentence structure

  42. anonymous
    • one year ago
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    true

  43. UsukiDoll
    • one year ago
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    Ok I need sleep way past my bed time night,

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