1. ## 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

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
$\displaystyle AD \parallel BC$