If `A(-2,-1),B(p,0),C(4,q)` and `D(1,2)` are the vertices of a parallelogram, find the values of p and q.

Of (-2,-1),B(a,0),C(4,b) and D(1,2) are the vertices f a parallelogram,find the values of a and b.

If A(-2,-1)B(a,0)C(4,b) and D(1,2) are vertices of a parallelogram find the values of a and b

If P(4,7), Q(7,2) R(a,b) and S(3,8) are the vertices of a parallelogram then find the value of a and b.

If the points A(6,1),B(8,2),C(9,4) and D(p,3 ) are the vertices of a parallelogram,taken in order,find the value of p.

If the points P(a, -11), Q(5, b), R(2, 15) and S(1, 1) are the vertices of a parallelogram PQRS, find the values of a.

If the points A(6,1),B(8,2),C(9,4) and D(k,p) are the vertices of a parallelogram taken in order,then find the values of k and p

If P(1, 2), Q(4, 6), R(6, 7) and S(a, b) are the vertices of a parallelogram PQRS, then