What it says on the tin. I already know how to find the determinant of a parallelogram using the vector components in a matrix, however, I am curious if there is a way to do it simply through the points given.
For example: Vertex $A=(1,1), B=(4,1), C=(5,4), D=(2,4)$
Would there be any way I could put the points into a matrix and get the answer similar to how it is done with a triangle?