Question

In parallelogram ABCD, coordinates are A(1, 2), B(5, 4) and C(7, 6). Find the coordinates of D and the area of the parallelogram.

A (2,5) and 9 square units
B (3,4) and 4 square units
C (3,2) and 2 square units
D (1,4) and 8 square units
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