The answer to your question would be 'A'
Using the distance formula,


Since ABCD has two pairs of opposite congruent sides, it is a parallelogram.
Answer:
A is the correct answer :)
Answer:
(- 6, 3 )
Step-by-step explanation:
Under a rotation about the origin of 90°
a point (x, y ) → (y, - x ), thus
(- 3, - 6 ) → (- 6, 3 )