What do you need me to answer
The anset to your question is 1/2
The rotated image if below the original image, so this shows it was rotated clockwise.
In the original image line FG is a horizontal line, if it is rotated 90 degrees, it would become a vertical line. In the rotated image line FG is at an angle, so this means it was rotated 45 degrees.
The answer is a 45 degree clockwise rotation.
