Question

Kim performed a transformation on triangle ABC to create triangle A'B'C', as shown in the figure below:
http://prntscr.com/96ghnv

What transformation did Kim perform to create triangle A'B'C'?

Reflection across the x‐axis
Rotation of 270 degrees counterclockwise about the origin
Reflection across the y‐axis
Rotation of 90 degrees counterclockwise about the origin

I think it has to be a rotation of something, but not sure what.

Answer 1

@TheSmartOne

Answer 2

so a normal rotation goes clockwise