Me ? ! finding coordinates of vertices of polygons. what’s a and b ?

A is (0,-s) and B is (r, 0)

Step-by-step explanation:

Assuming this is symmetrical, point A and point B are direct opposites from the points on the same axis as them

So point A has the same distance from (0,0) as point C.

Lets say point C is (0, 5). That would make point A (0, -5) because it has the same distance from (0,0) as does C, and theyre direct opposites.

1/4 because there is 4 grades.