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The area of quadrilateral can be found by splitting it into two triangles and ading up their areas.
The area of the quadrilateral whose vertices taken in order are A(x_{1}, y_{1}), B(x_{2}, y_{2}), C(x_{3}, y_{3}), D(x_{4}, y_{4}).
Write down the coordinates as shown
Example: Find the area of the quadrilateral whose vertices are (3.4), (0,5),(2,1) and (3,2). Directions: Solve the following. 
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