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Published byLewis Preston Modified over 8 years ago

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Rotational Symmetry All 2 dimensional shapes have some rotational symmetry. The degree of rotational symmetry that an object has is known as its order. For shapes that have “order 2” rotational symmetry or higher, a single centre of rotation can be located. For shapes that have only “order 1” rotational symmetry a centre of rotation can be found anywhere within it. PowerPoint XP or above is needed to view the rotations on this presentation. Order 1 Order 2 Order 3 Order 4 The order of rotational symmetry that an object has is the number of times that it fits on to itself during a full rotation of 360 degrees.

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Rotational Symmetry The order of rotational symmetry that an object has is the number of times that it fits on to itself during a full rotation of 360 degrees. Order 1

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Rotational Symmetry The order of rotational symmetry that an object has is the number of times that it fits on to itself during a full rotation of 360 degrees. 2 1 Order 1 Order 2

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Rotational Symmetry The order of rotational symmetry that an object has is the number of times that it fits on to itself during a full rotation of 360 degrees. 2 1 Order 1 Order 2 3 2 1 Order 3

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Rotational Symmetry The order of rotational symmetry that an object has is the number of times that it fits on to itself during a full rotation of 360 degrees. 2 1 Order 1 Order 2 3 3 4 2 1 2 1 Order 4 Order 3

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Rotational Symmetry What is the order of rotational symmetry of the shape below?

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Rotational Symmetry What is the order of rotational symmetry of the shape below? 5 4 1 3 2 Order 5

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Rotational Symmetry What is the order of rotational symmetry of the shape below?

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Rotational Symmetry What is the order of rotational symmetry of the shape below? 6 5 1 2 4 3 Order 6

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Regular Polygons Equilateral Triangle

An equilateral triangle has rotational symmetry of order ? Regular Polygons

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Equilateral Triangle An equilateral triangle has rotational symmetry of order ?

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Equilateral Triangle An equilateral triangle has rotational symmetry of order ? 3 3 2 1

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Square A square has rotational symmetry of order ? Square

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Square A square has rotational symmetry of order ?

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Square A square has rotational symmetry of order ? 4 3 4 2 1

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Pentagon Regular Pentagon

A regular pentagon has rotational symmetry of order ? Pentagon

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Regular Pentagon A regular pentagon has rotational symmetry of order ?

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Regular Pentagon A regular pentagon has rotational symmetry of order ? 5 5 4 1 3 2

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Hexagon Regular Hexagon

A regular hexagon has rotational symmetry of order ? Hexagon

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Regular Hexagon A regular hexagon has rotational symmetry of order ?

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Regular Hexagon 6 A regular hexagon has rotational symmetry of order ?

5 6 4 1 3 2

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Octagon Regular Octagon

A regular octagon has rotational symmetry of order ? Octagon

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Regular Octagon 8 A regular octagon has rotational symmetry of order ?

7 8 6 1 5 2 4 3

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Rectangle A rectangle has rotational symmetry of order ? Rectangle

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Rectangle A rectangle has rotational symmetry of order ? 2 2 1

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Parallelogram Parallelogram

A parallelogram has rotational symmetry of order ? Parallelogram

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Parallelogram 2 A parallelogram has rotational symmetry of order ? 2 1

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Isos Tri Isosceles Triangle

An isosceles triangle has rotational symmetry of order ? Isos Tri

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Isos Tri Isosceles Triangle 1

An isosceles triangle has rotational symmetry of order ? 1 Isos Tri

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Scalene Tri Scalene Triangle

An scalene triangle has rotational symmetry of order ? Scalene Tri

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Scalene Triangle 1 An scalene triangle has rotational symmetry of order ? 1

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Isos Trapezium Isosceles Trapezium

An isosceles trapezium has rotational symmetry of order ? Isos Trapezium

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Isosceles Trapezium An isosceles trapezium has rotational symmetry of order ? 1 1

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Trapezium A trapezium has rotational symmetry of order ? Trapezium

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Trapezium 1 A trapezium has rotational symmetry of order ? 1

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Kite A kite has rotational symmetry of order ? Kite

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Kite 1 A kite has rotational symmetry of order ? 1

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Rhombus A rhombus has rotational symmetry of order ? Rhombus

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Rhombus 2 A rhombus has rotational symmetry of order ? 2 1

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Ellipse An ellipse has rotational symmetry of order ? Ellipse

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Ellipse 2 An ellipse has rotational symmetry of order ? 1 2 Ellipse

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Questions 1 Rotational Symmetry

State the order of rotational symmetry for each shape below: 1 2 3 4 Order 6 Order 2 Order 3 Order 2 5 6 7 8 Order 1 Order 3 Order 2 Order 5 9 10 11 12 Questions 1 Order 4 Order 1 Order 6 Order 8

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Worksheet 1 Rotational Symmetry

State the order of rotational symmetry for each shape below: 1 2 3 4 5 6 7 8 9 10 11 12 Worksheet 1

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Questions 2 Rotational Symmetry

State the order of rotational symmetry for each shape below: 13 14 15 16 Order 4 Order 1 Order 2 Order 5 17 18 19 20 Order 2 Order 4 Order 6 Order 3 21 22 23 24 Questions 2 Order 5 Order 4 Order 3 Order 1

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Worksheet 2 Rotational Symmetry

State the order of rotational symmetry for each shape below: 13 14 15 16 17 18 19 20 21 22 23 24 Worksheet 2

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