Two Reflections Over Intersectig Lines : Challenge[br]Set up two intersecting lines. Do two consecutive reflections of a quadrilateral over the intersecting lines.[br]Demonstrate that two consecutive reflection transformations over intersecting lines of reflection could be[br] done in a single ___________ transformation.

Is there a relationship between the angle between the intersecting lines and the angle from the points on the original to the corresponding points on the final image using the point of intersection of the lines as the vertex?