Can you show me a picture of the problem?
From this picture you can calculate coordinates of triangles' vertices:

.
Since
you can conclude that points A, B, C are rotated by

about the point (-0.5,0) to form points J, G, H, respectively.
Answer: A is correct choice.
Answer:
n4ur84234r
Step-by-step explanation:
3874rfbh dc
Answer:
I messed up and forgot the six at the end dont put that answer as your answer sorry