They all have vertical symmetry. This means you can draw a mirror line down through the middle of each shape and divide it into two reflected halves. Remember vertical means from top to bottom.

A symmetry requires that the transformation not alter ... 180 and 270 degrees), and the four on the right are reflections (two by vertical and horizontal lines, two by diagonal lines). So these eight ...

They all have vertical symmetry. This means you can draw a mirror line down through the middle of each shape and divide it into two reflected halves. Remember vertical means from top to bottom.