Question

(ii) If A (-2, -1), B(a,0), C(4, b) and D(1, 2) are the vertices of a parallelogran
then complete the following activity to find the values of a and b.
Diagonals of a parallelogram bisect each other.
.. coordinates of midpoint of AC = coordinates of midpoint of BD.
-2+
a +1 0+
1tb
2
+6)=(
2
2
2
a at
b-1
2
2
atl
b-1
1 and = 2
2
2
On simplifying, we get,
b!
-
and b
a =​

Answer 1

Answer:

value of a equals 1

value of b equals 3

Step-by-step explanation:

the explanation is given above