How many lines of symmetry does a circle have?

How many lines of symmetry does a parallelogram have?

Trace the adjacent figures on a graph paper and add two more squares so that the dashed line becomes a line of symmetry.

Trace the adjacent figures on a graph paper and add two more squares so that the dashed line becomes a line of symmetry.

Trace the adjacent figures on a graph paper and add two more squares so that the dashed line becomes a line of symmetry.

List all the alphabetical letters which have horizontal lines of symmetry.

List all the alphabetical letters which have vertical lines of symmetry.

List all the alphabetical letters which have no lines of symmetry.