Question

Three consecutive vertices of a parallelogram are A(1,2), B(2,3) and C(8,5). Find the fourth vertex.​

Answer 1

Answer:

• let the co ordinates of D be (x,y)
• AC =BD

Step-by-step explanation:

1+8. , 2+5

2 2

9. , 7

2 2

x+2 , y+3

2. 2

x+2 = 9

2. 2

x+2=9

x=7

y+3. = 7

2. 2

y+3=7

' y=4

D(7,4)