By splitting the pizza up and sharing
The last one: the arc AB is a semicircle.
a semicircle is 180 degrees
I believe that A and D would be the correct answer. Because both are 30,60,90 triangles and would be congruent. The other 2 triangles only have 1 angle and their side measures are at two different places meaning they cannot be congruent.
The y intercept is= (0,3)
