Answer:
You did not put the graphs
Step-by-step explanation:
Yes that is correct because 4-3 plus 5 is 6 and -6 +8+4 is 6 soo dont stress your self out..Lol
The sum of all exterior angles of ANY polygon is equal to 360 degrees.
SO in this figure...
360 = 134 + 130 + x
360 = 264 + x
x = 360 - 264 = 96 degrees
we have that

we know that
If two lines are parallel
then
their slopes are equals
and
if two lines are perpendicular
then
the product of their slopes is equal to 
step 1
find the slope of the line segment AB



step 2
find the slope of the line segment CD




therefore
the answer is
Line segments AB and CD are perpendicular