A(6,1), B(8,2), C(9,4) are three vertices of a parallelogram ACBD. If E is midpoint of DC, find the area of ∆ADE.

Given, ACBD is parallelogram.AB and CD are the diagonal intersecting in E.

Let the coordinates of D be (*x*, *y*).

We know that, **diagonals of parallelogram bisect each other.**

∴ Mid point of CD = Mid point of AB

**Coordinates of D = (5, 1)**

**Coordinates of E **

Area of ΔADE

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