Answer:
AAA
Step-by-step explanation:
angles are equal because two pairs are of alternate angles and one of vertically opposite angles
Convert to cylindrical coordinates:
Then 
is the set of points 
such that 
, 
, and 
or 
.
Now
Answer:
2°
Step-by-step explanation:
Hello
I see you are very confused by this problem. However, there is an easy way to solve this one.
It has been proved that the sum of all angles in a rectangle is always 180°. Here is a way to prove it:
x y
_______A_________
/\
/ \
/ \
/ \
___/_______ \__
B C
we have two parellel lines xy and BC. It is true that:
xAy = 180°
xAB + BAC + CAy = xAy = 180
xAB = ABC
CAy= ACB
=> ........
I'll let you finish with your great intellect ^_^
HOPE YOU LEARN WITH JOY AND GOOD GRADE
Have you learned about the Pythagorean theorem? a² + b² = c² . . . you should teach them about this.
