geometry

........../\
........../1
<----------------->
..../
../2
<----------------->
/....
\/.....

corresponding angles

......../\
......../
<----------------->
..../1
../2
<----------------->
/....
\/.....

consecutive interior angles/
goal posts

l_l

......../\
......../
<----------------->
1/
../2
<----------------->
/....
\/.....

alternate interior angles

Z

........../\
......1/
<----------------->
../
<----------------->
/.2.
\/.....

alternate exterior angles

............/\
........3/1
<----------------->
..4./2
7./5
<----------------->
8/.6...
\/.....

corresponding angles:
alternate exterior angles:
alternate interior angles:
consecutive interior angles: