Question

problem 4
sai saw a transformer and described the figure before (shaded) and after (unshaded).
sai said: the figure flipped.
rewrite the description to make it stronger and clearer.

Explanation:

The term "flipped" is too general. In geometry, a more precise term for this transformation is "reflected". We can specify the axis of reflection if known. Since no axis is given, a stronger description is to use the geometric - term for the transformation.

Answer:

The figure was reflected.