Eg1. A square We say that a square has… It fits on itself 4 times back.

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Presentation transcript:

Eg1. A square We say that a square has… It fits on itself 4 times back

Eg2. A heart shape We say that a heart has… It fits on itself only once back

Remember your MARGIN !!! DATE Objectives: To be able to recognise the order of rotational symmetry of any shape

Rotational Symmetry The order of rotational symmetry of a shape is determined by how many times the shape fits onto itself during a 360° turn. (Example 1)(Example 1) Every shape has an order of rotational symmetry, even if it is order 1. (Example 2)(Example 2) Have a look at the following shapes…

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

A

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