Answers

2016-01-21T22:41:40+05:30
Remember the following formula to find the fourth vertex of any paralleogram whose first three vertex coordinates are given.The solution in your case is D(x,y) = (a+b-2a-b+a-b , a-b-2a+b+a+b) Therefore , D(x,y) = (-b,b) Where x and y are the coordinates of the fourth vertex.
1 3 1
D(x,y) are the coordinates of the fourth vertex
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