# math

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If the adjacent vertices of a square ABCD are A ( -2 , 0 ) , find
- The equation of the two diagonals AC and BD
- The point of intersection O of the two diagonals AC and BD
- The equation of the altitude from O to the side CD
- The centroid of the triangle OCD by finding any two of its medians
- The perimeter of the square ABCD

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