Question

Let us show that the points (- 7, 12), (19, 18), (15,- 6) and (- 11, – 12) form a
parallelogram when they are joined orderly.​

Answer 1

let A=(-7,12)

B=(19,28)

C=(15,-6)

D=(-11,-12)

find the mid point of A and C...we get (4,3)

then find mid value of B and D..we get(4,8)

mid point of AC is not equal to BD

so it will not form a parallelogram.