1 . If the co-ordinates of A and B are (x, y) and (x, -y) respectively, then the co-ordinates of the midpoint of AB are:
- A. (x, y)
- B. (0, y)
- C. (-x, -y)
- D. (0, 0)
- D. (x, 0)
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1 . If the co-ordinates of A and B are (x, y) and (x, -y) respectively, then the co-ordinates of the midpoint of AB are:
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