Answer :

Let our points of parallelogram be A(-2, -1), B(1, 0), C(4, 3) and D(1, 2) and mid point of diagonals be E(x,y)

We know that diagonals of parallelogram bisect each other.

Hence, we find mid point of AC.

By midpoint formula,

x = , y =

For point E(x, y)

x1 = , y1=

x1 = , y1 =

E (x, y) ≡ ( , 1 )

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