What are the coordinates of W?
A: (c + a, 0)
B: (0, a)
C: (0, b)
D: (b, 0)

The Coordinates of vertex W is (0, b). therefore, Option C is correct.
The intersection of both diagonals is same as an intersection of both axes that is the origin ( 0, 0).
We have to find the Coordinates of vertex W.
Only ( 0, b ) satisfy our requirement. It is a w unit away from origin same as vertex Z.
Also, the x-coordinate of it's 0.
The Coordinates of vertex W is (0, b).
therefore, Option C is correct.
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