The figure is reflected across line m and then reflected across line n. What is the resulting transformation?

We know that when a figure is reflected across a line that we obtain a mirror image of the figure at the opposite side of the line and at a same distance from the line as it was before the reflection transformation.\
Hence, here we are given a star shaped figure which is to be reflected first across the line m and then across the line n.
So, the series of reflection transformation is applied to it.