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Thread: Math Help

  1. #1
    Newbie
    Joined
    Jun 2009
    Posts
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    Math Help

    First of all, New to the forums, want to say Hello to everyone!

    Second, im having trouble on one of my homework assignments and would like to know if anyone could help me.

    http://i40.tinypic.com/2li946c.png
    The questions are there, any answers/help would be appreciated

    Thanks in advance!
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  2. #2
    Super Member

    Joined
    May 2006
    From
    Lexington, MA (USA)
    Posts
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    Thanks
    848
    Hello, i3adacc!

    Welcome aboard!


    Use the given information to determine which segments must be parallel.
    Code:
         A        W               X      D
          * - - - * - - - - - - - * - - *
          |\14   13\12         11/10   9|
          |1\       \           /       |
          |  \       \         /        |
          |   \       \       /         |
          |    \       \     /          |
          |     \       \   /           |
          |2    3\4     5\6/7          8|
          * - - - * - - - * - - - - - - *
         B        Y       Z              C

    $\displaystyle 15.\;\;\angle 3 \:=\:\angle14$
    Code:
         A                   D
          * - - - - - - - - * 
           \14
            \
             \
              \
               \
                \
                3\
          * - - - * - - - - *
         B        Y          C
    $\displaystyle AD \parallel BC$



    $\displaystyle 16.\;\;\angle 12 \:=\:\angle14$
    Code:
         A        W
          * - - - * - - -
           \14     \12
            \       \
             \       \
              \       \
               \       \
                \       \
                 \       \
                  *       *
                  Y       Z
    $\displaystyle AY \parallel WZ$



    $\displaystyle 17.\;\;\angle5 + \angle6 \:=\:\angle10$
    Code:
         A                        X      D
          * - - - - - - - - - - - * - - *
                                 /10
                                /
                     \         /
                      \       /
                       \     /
                        \   /
                        5\6/
          * - - - - - - - * - - - - - - *
         B                Z              C
    $\displaystyle AD \parallel BC$



    $\displaystyle 18.\;\;\angle4 + \angle14 \:=\:180$
    Code:
         A                               D
          * - - - - - - - - - - - - - - *
           \14
            \
             \
              \
               \
                \
                 \4
          * - - - * - - - - - - - - - - *
         B        Y                      C
    $\displaystyle AD \parallel BC$



    $\displaystyle 19.\;\;\angle5 + \angle6 + \angle11 \:=\:180$
    Code:
         A                        X      D
          * - - - - - - - - - - - * - - *
                               11/
                                /
                     \         /
                      \       /
                       \     /
                        \   /
                        5\6/
          * - - - - - - - * - - - - - - *
         B                Z              C
    $\displaystyle AD \parallel BC$



    $\displaystyle 20.\;\;AW \perp WZ\,\text{ and }\,DZ \perp WZ\;\;{\color{red}??}$
    Is it supposed to be: .$\displaystyle AW \perp WZ\,\text{ and }\,{\color{red}CZ} \perp WZ\;?$
    Code:
         A        W              D
          * - - - * - - - - - - *
                  |
                  |
                  |
                  |
                  |
                  |
                  |
          * - - - * - - - - - - *
         B        Z              C
    $\displaystyle AD \parallel BC$


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