Line Symmetry
The concept of line symmetry or reflectional symmetry is closely related to mirror reflection. A shape has line symmetry when one half of it is the mirror image of the other half.
A mirror line, thus, helps to visualise a line of symmetry.
Is the dotted line a mirror line?
Is the dotted line a mirror line?
Complete them so that they have reflectional symmetry:
Draw all axes of symmetry in these six images and shapes:
This shape has
A square has
This shape has