Answer:
(0,c)
Explanation:
Here we are given that it is a square and hence all the sides are equal.
If we draw this square such that the vertex O lies on (0,0) , the vertex C will be at distance c away from (0,0) on x axis and its coordinates will be (c,0)
Similarly , the point A will be lying on y axis and at a distance of c units as sides are equal. Thus the coordinates of the point A can be (0,c)