Question

73. If A(1, 2), B(4, 3) and C(6, 6) are the three vertices of a parallelogram ABCD, find the coordinates of fourth-
vertex D​

Answer 1

Step-by-step explanation:

let D = (x,y)

Hence mid point of AC = mid point of BD

BD = 4+x/2 , 3+y/2

hence x=2 and y=3/2