if the points A(1,-2) B(2,3) C(-3,2) and D(-4,-3) are the vertices of the paralleogram ABCD, then taking AB as the base, find the height of parallelogram.

The line AB is

y+2 = 5(x-1)
5x - y - 7 = 0

The distance from C to AB is

|5(-3)+(-1)(2)-7|/√25+1) = 25/√26