Answer:
B
Step-by-step explanation:
Substitute the given values for x and y into the expression
-
+ 
= 4 - 4 + 
= 0 + 
=
= 4 
The answer is a. Because because congruent angles are equal. if they are equal and start at the center of a circle this means that they can only travel the same distance before hitting border of circle. this would make their arcs the same