Hint for reflection problem

From EscherMath

To create the reflection use some strategically placed ponts on the object you want to reflect. Draw the mirror image of these points to help yu sketch the entire reflection.

If you are having problems sketching the reflected point, then draw a perpendicular to the mirror line and mark of the point that is equidistant from the mirror line but of course on the other side of the mirror)

In the example above several points were chosen on the letter P. Two of the perpendiculars to the mirror line are shown (dashed lines). Enough points were picked and reflected so that the mirror image of the P could be created by connecting the dots.

If the mirror line intersects the shape you want to reflect, this still works out. You will see that the original and the image after reflection will intersect one another though.