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H0.2b Line Symmetry2
- 1. Symmetry: A Visual Presentation A PowerPoint Presentation created by Mrs. Gamache using the collection of web pages created by the Adrian Bruce and students of 6B http://www.adrianbruce.com
- 3. Is a butterfly symmetrical?
- 4. Line Symmetry exists in nature but you may not have noticed.
- 5. At the beach there are a variety of shells with line symmetry.
- 6. Under the sea there are also many symmetrical objects such as these crabs and this starfish.
- 7. Animals that have Line Symmetry Here are a few more great examples of mirror image in the animal kingdom.
- 8. THESE MASKS HAVE SYMMETRY These masks have a line of symmetry from the forehead to the chin. Â The human face also has a line of symmetry in the same place.
- 9. Human Symmetry The 'Proportions of Man' is a famous work of art by Leonardo da Vinci that shows the symmetry of the human form.
- 10. REFLECTION IN WATER If an object is reflected in water it is considered to have line symmetry along the waterline.
- 11. The Taj Mahal Symmetry exists in architecture all around the world. The best known example of this is the Taj Mahal.
- 12. This photograph shows 2 lines of symmetry. One vertical, the other along the waterline. (Notice how the prayer towers, called minarets, are reflected in the water and side to side).
- 13. 2D Shapes and Symmetry After investigating the following shapes by cutting and folding, we found: Â
- 14. an equilateral triangle has 3 internal angles and 3 lines of symmetry.Â
- 15.   a square has 4 internal angles and 4 lines of symmetry. Â
- 16. Â a regular pentagon has 5 internal angles and 5 lines of symmetry. Â
- 17. a regular hexagon has 6 internal angles and 6 lines of symmetry .
- 18. Â Â a regular octagon has 8 internal angles and 8 lines of symmetry.
Hinweis der Redaktion
- Â Â Â Â Â Â Â
- Â Â Â Â Â Â Â How would you define the term 'line symmetry'? Â Â Â Â Â Â Â Why might some people see line symmetry as a thing of beauty?
- This type of symmetry is also called reflectional symmetry as the two parts reflect/match along each side of a dividing line ( or axis ).
- There are also many examples of symmetry inside the human body e.g. the lungs, the kidneys, the brain, the skull, etc.
- In this view of the building there is a line of symmetry through the centre of the tomb from top to bottom. It was completed in 1630 by the Indian ruler Shahs Jahan as a tomb for his favourite wife Mumtaz Mahal who died as a result of giving birth to their 14th child. To build this tomb it took 20 000 workers, 20 years (Encarta 97) and it is rumoured that they used 40 000 elephants to transport the materials.
- Is there a pattern here? Â Â Â Â Â Â Â Â Â Â Â How could you prove that a square really does have 4 lines of symmetry and not 2. Â Â Â Â Â Â Â Â Â Â Â A rectangle has 4 lines of symmetry. True or False? How could you prove it? Â Â Â Â Â Â Â Â Â Â Â What pattern can you see emerging on this page?