(708,#19) Find the area of the parallelogram with vertices A(0,1)

(708,#19) Find the area of the parallelogram with vertices A(0,1), B(3,0), C(5,-2), D(2,-1)
Solution:

Area A =
For the parallelogram with points A(0,1), B(3,0), C(5,-2), D(2,-1)

by:sh