Generation Genius Symmetry

A circle has _________number of lines of symmetry.

• 6

• 4

• 10

• infinite / countless

Does this have a line of symmetry?

• Yes

• No

How many lines of symmetry does this shape have?

• 1

• 3

• 5

• 10

How many of these shapes have EXACTLY ONE line of symmetry?

• 0

• 3

• 6

• 9

Match the following

• Symmetry

• When a figure is mapped onto itself by a reflection in a line.

• Point Symmetry

• When a shape is mapped onto itself.

• Translation Symmetry

• When a figure is mapped onto itself by sliding.

• Rotational Symmetry

• When a figure is mapped onto itself by rotating it less than 360º about a center point.

• Line Symmetry

• When a figure is mapped onto itself by rotating it 180º about a center point.

Symmetrical?

• Is symmetrical

• not symmetrical

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 3

Symmetrical?

• symmetrical

• not symmetrical

This shape has exactly only ______________ line(s) of symmetry.

A __________________ is a line that cuts a shape exactly in half.

• picture of symmetry

• line of symmetry

• plane of symmetry