SYMMETRY This shape is symmetrical The shape has

SYMMETRY

This shape is symmetrical. The shape has one line of symmetry.

Some shapes have more than one line of symmetry. The shape has two lines of symmetry

How many lines of symmetry? The shape has three lines of symmetry.

How many lines of symmetry? The shape has five lines of symmetry.

How many lines of symmetry? The shape has infinite lines of symmetry.

ROTATIONAL SYMMETRY

How many lines of symmetry? There are no lines of symmetry but it does have another type of symmetry.

X It has rotational symmetry of order 4.

How many lines of symmetry? There are 2 lines of symmetry.

What is the order of rotational symmetry? X It has rotational symmetry of order 2.

How many lines of symmetry? There are 8 lines of symmetry.

What is its order of rotational symmetry? X It has rotational symmetry of order 8.

SYMMETRY PROPERTIES OF QUADRILATERALS

Square X Number of lines of symmetry = 4 Order of rotational symmetry = 4

Rectangle X Number of lines of symmetry = 2 Order of rotational symmetry = 2

Parallelogram X Number of lines of symmetry = 0 Order of rotational symmetry = 2

Kite X Number of lines of symmetry = 1 Order of rotational symmetry = 1

Rhombus X Number of lines of symmetry = 2 Order of rotational symmetry = 2

PLANES OF SYMMETRY

Plane of symmetry or not?

How many planes of symmetry are there in a cuboid? There are three planes of symmetry.

How many planes of symmetry are there in a cube?

DIAGONAL PROPERTIES OF QUADRILATERALS note: an understanding of intersecting diagonal properties is essential for later topics in shape and space

SQUARE Diagonals bisect each other Diagonals cross at 90 o RECTANGLE Diagonals bisect each other

RHOMBUS Diagonals bisect each other Diagonals cross at 90 o PARALLELOGRAM Diagonals bisect each other