Symmetry Objective: To identify reflectional (line), rotational, and point symmetry using reflections and rotations.

Symmetry Symmetry: a figure has symmetry if there is and isometry that maps the figure onto itself. Reflectional symmetry (line symmetry): a type of symmetry for which there is a reflection that maps a figure onto itself. The reflection line is the line of symmetry. The line of symmetry divides a figure with reflectional symmetry into two congruent halves.

Symmetry Rotational symmetry: the type of symmetry for which there is a rotation of or less that maps a figure onto itself. Point symmetry: the type of symmetry for which there is a rotation of that maps a figure onto itself.

EX: Tell what type(s) of symmetry each figure has. 1. 2.

EX: Tell what type(s) of symmetry each figure has 3. 4.

EX: Tell what type(s) of symmetry each figure has. 5. 6.

MATH IXL L11