If two pure reflections about a line passing through the origin are applied successively the result is
A)Pure rotation
B)Quarter rotation
C)Half rotation
D)True reflection

Question

Quizplus · Accepted Answer

When two pure reflections about a line passing through the origin are applied successively, the result is a pure rotation around the origin. The angle of rotation is twice the angle between the line of reflection and a fixed line through the origin.

If Two Pure Reflections About a Line Passing Through the Origin