Saturday, January 3, 2009

Geometry

Math with Ms. Li

1 comment:

  1. Do it Again, Sam.

    Paper Rectangles
    1.

















    Stage Area of Rectangle (in2)
    0 187/2
    1 187/4
    2 187/8
    3 187/16
    4 187/32
    5 187/64
    6 187/128
    2.









    3.
    The limit seems to be zero because, with an increase in the stage
    number, the y-values get closer and closer to zero.













    4. Pattern to find the area of any stage (e.g. 7, 8, 9, and 100 etc.):
    A = 187/ 2(n+1); where n = the stage number and A = area in inches squared.
    -To find the area of stage 100, one must simply replace n with 100 in the aforementioned equation.
    A = 187/ 2(100+1) = 187/2101 in2

    Stage Area of Rectangle (in2)
    7 187/256
    8 187/512
    9 187/1024
    100 187/2101



    Stage Perimeter of Rectangle (in)
    0 39
    1 28
    2 19.5
    3 14
    4 9.75
    5 7
    6 4.875
    5.









    6.
    The limit seems to be zero, because with an increase in the stage
    number, the y-values get closer and closer to zero.









    7. Pattern to find the perimeter of any stage (except 0 and 1):
    - To find the perimeter of any odd numbered stage (e.g. 7, 9, and 11 etc.):
    P = 28/2 (v/2); where P = the perimeter in inches, v = n-1, n = the stage number,
    - To find the perimeter of any even numbered stage (e.g. 8, 10, and 12 etc.):
    P = 39/2(n/2); where P = the perimeter in inches, and n = the stage number.
    - To find the perimeter of stage 100 (knowing “100” is an even number) replace n with 100 in the
    aforementioned ed equation for even numbered stages:
    P = 39/2(100/2) = 39/250

    Stage Perimeter of rectangle (in)
    7 3.5
    8 2.4375
    9 1.75
    100 39/250







    The Sierpinski Triangle

    Stage Side Perimeter Area
    0 16 48 111
    1 8 72 83.25
    2 4 108 66.6
    3 2 162 55.5
    4 1 243 333/7
    8.












    9. All the triangles in the Sierpinski triangle are similar to each, from the smallest to the largest. For example, the inscribed and shaded triangle in stage 1 is similar to the larger un-shaded triangle in stage 0.

    Stage Perimeter of Triangles
    0 48
    1 72
    2 108
    3 162
    4 243
    10.







    11.

    There is no limit because the y-values constantly increase
    with an increase in the stage number.













    12. Pattern to find the perimeter of any stage (e.g. 7,8,9, and 100):
    P = 1.5n (48); Where P = the perimeter and n = the stage.
    - To find the perimeter of stage 100, simply replace n with 100 in
    the above equation.


    Stage Perimeter
    7 820.125
    8 1230.1875
    9 1845.28125
    100 1.5100 (48)

    Stage Total Area (square units)
    0 111
    1 83.25
    2 66.6
    3 55.5
    4 333/7

    13.







    14.
    The limit is zero because, with an increase in the stage number,
    the y-values get closer and closer to zero.












    15. Pattern to find the area of any stage (e.g. 7,8,9, and 100 etc.):
    A = 333/(n+3); where A = the area in square units and n = the stage number.
    -To find the area of stage 100, simply replace n with 100 in the equation above regarding area.
    A = 333/(100+3) = 333/103

    Stage Area (square units)
    7 33.3
    8 333/11
    9 27.75
    100 333/103

    16.










    17. Koch’s snowflake does show self-similarity because segments/triangles/shapes added at each stage resemble the segments/triangles/shapes that were added in the previous stages.

    Stage Perimeter
    0 81
    1 108
    2 144
    3 180
    4 186
    18.







    19.

    The Sequence of perimeters does not have a limit because the y-values
    Continue to increase with every stage.









    20. Pattern to find the total perimeter of any stage (e.g. 7, 8, 9, and 100):


    - To find the total perimeter of stage 100, replace n with 100 in the equation above ( )


    Stage Total Perimeter
    7
    8
    9
    100


    Stage Area (units square)
    0 316
    1 437.5
    2 491.5
    3 509.5
    4 527.5
    21.













    22. There is no limit because the y-values (the area) increase with an
    increase in the stage number (x-values).












    23. Pattern to find the area of any stage (e.g. 7, 8, 9, and 100):


    -To find the area of stage 100, replace n with 100 in the above equation ( ).



    Stage Area (square units)
    7
    8
    9
    100

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