Question

points A (2, 1) b (5,1) C (a, b) and d (4,3) are vertices of a parallelogram ABCD find the value of a and b​

Answer 1

Answer:

(a,b)=(7,3)

Step-by-step explanation:

The property of the parallelogram is the diagonals bisect each other.

So, Mid point of AC = midpoint of BD

((2+a)/2),(1+b)/2) = ((5+4)/2),(1+3)/2)

Equating X

((2+a)/2) = 9/2

2+a = 9

a=7

Equating Y

(1+b)/2) = 4/2

1+b = 4

b=3

I think the (2,1) is (3,1). I think this is the maths cbse 10 maths paper 2019.