Question

The fourth vertex 'D' of a parallelogram ABCD whose three vertices are A(–2,3), B(6,7), C(10,3) is: *



(0,1)

(2,–1)

(–1,0)

(1,0)

​

Answer 1

Answer:

The fourth vertex D of a parallelogram ABCD whose three vertices are A(-2,3), B(6,7) and C(8,3) is. Solution : Let the fourth vertex of parallelogram , D ≡(x4,y4)and L,M be the middle points of AC and BD , respectively. Hence , the fourth vertex of parallelogram is D ≡(x4,y4)≡(0,1).