If the points A(1,-2) ,B(2,3),C(a,2),D(-4,-3) from a parallelogram , then find the value of a and the height of the parallelogram taking AB as base. Share with your friends Share 0 Shobhit Mittal answered this if it is parallel gram then AB=CD2-12+3+22=a+42+2+321+25=a+42+25a+4=1a=-3Regards 0 View Full Answer