SOLUTION: three vertices of a parallelogram are 2,7 6,1 and 9,6 find the fourth vertex

Question 460128: three vertices of a parallelogram are 2,7 6,1 and 9,6
find the fourth vertex
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
There are many possible answers. Consider the following parallelograms:

The three vertices of the triangle will combine with any of (-1,2), (5,12) or (13,0) to make a parallelogram. To actually find the coordinates of the fourth vertex, "slide" the opposite side over and just add the x- and y-coordinates.
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