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28Tylerr

  • 3 years ago

Suppose the side lengths and height of the triangle were divided by three. What effect would this have on the perimeter? & The Area? Justify your answer @Geometry

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  1. 28Tylerr
    • 3 years ago
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    The Orginial Perimeter was 33m and the Area was 27.

  2. 28Tylerr
    • 3 years ago
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    This is the last part of the question.

  3. amistre64
    • 3 years ago
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    the perimeter is just like before; just divide it by 3; the area tho is nit a linear measurement and needs some work to it

  4. 28Tylerr
    • 3 years ago
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    P would equal 11?

  5. 28Tylerr
    • 3 years ago
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    Our base was 12? I think

  6. amistre64
    • 3 years ago
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    12 sounds right, youd have to dbl chk tho :)

  7. 28Tylerr
    • 3 years ago
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    Our base was 12? I think

  8. 28Tylerr
    • 3 years ago
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    Here let me draw it out real quick (:

  9. amistre64
    • 3 years ago
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    \[Area = \frac{1}{2}*base*height\] \[Area = \frac{1}{2}*\frac{base}{3}*\frac{height}{3}=\frac{1}{18}bh\]

  10. 28Tylerr
    • 3 years ago
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    Our base was 12? I think

  11. 28Tylerr
    • 3 years ago
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    |dw:1320881287444:dw|

  12. amistre64
    • 3 years ago
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    base = 6 and height = 9 it looks like in that

  13. 28Tylerr
    • 3 years ago
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    Our base was 12? I think

  14. 28Tylerr
    • 3 years ago
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    P = 1/2 x 54

  15. 28Tylerr
    • 3 years ago
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    A =*

  16. amistre64
    • 3 years ago
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    |dw:1320881588115:dw|

  17. amistre64
    • 3 years ago
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    if you just divided the measures in half, then your not matching this problem. It wants the measures divided by 3

  18. amistre64
    • 3 years ago
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    12/3 = 4 18/3 = 6

  19. 28Tylerr
    • 3 years ago
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    My bad lol

  20. amistre64
    • 3 years ago
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    i just checked out your other post; it was 6 for the bottom and 9 for the height ....

  21. amistre64
    • 3 years ago
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    the normal area, is then: 1/2 x 54 as you stated

  22. amistre64
    • 3 years ago
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    if we divide all the sides by 3; that will go to: 1/(2*3*3) x 54 or simply 1/18 x 54

  23. amistre64
    • 3 years ago
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    which is also: 1/2 * 6/3 * 9/3 1/2 * 2 * 3 1/2 x 6

  24. 28Tylerr
    • 3 years ago
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    A = 3

  25. amistre64
    • 3 years ago
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    yep

  26. 28Tylerr
    • 3 years ago
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    Man thanks your real good at this math.

  27. amistre64
    • 3 years ago
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    we can say that if the sides are divided by 3, then the area is divided by 3^2

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