Question

If the points A(1,-2), B(2,3), C(a,2) anfld D(-4,-3) form a parallelogram , find the value of a and the height of the parallelogram , taking AB as base

Answer 1

I am not confident on his but may be this is correct. as we know opposite sides are congruent in papralelogram . so equate CD and BA using distance formula. again equate CB and DA by distance formula. look for common value in both cases . that should be the answer