Question

Prove that A(-2,-1), b(1,0),c(4,3) and d(1,2) are vertices of a parallelogram ABCD

Answer 1

As diagonals bisect each other

so mid point of AC= MID POINT OF BD
-2+4)/2,-1+3)/2 = 1+1)/2,0+2)/2
1,1 = 1,1