Platforms
The coordinates of the vertices of the triangle are (–8, 8), (–8, –4), and .
The area of triangle PQR is square units.
Subtract the triangle areas from the area of the rectangle to obtain the area of the parallelogram. The area of parallelogram ABCD is square units.
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Area of Triangles and Parallelograms
Figures in the Coordinate Plane
Instruction