Wednesday 22 October 2014

Rotational Symmetry

In your own words explain what rotational symmetry is.
Rotational symmetry is when a shape can rotate and become itself again in more then two degrees.

A shape has an order of rotational symmetry of 2. What does this mean?
It can rotate 360° but can make the same shape in two positions.

How is rotational symmetry different from line symmetry?
Line symmetry will always be symmetric if you rotate it but rotational symmetry has a number of orders that it will be symmetric.

What do you do to check if a shape has rotational symmetry? 
Rotate it and if comes into symmetry more then once, it is rotational symmetry.

Find pictures of 3 real life objects which have rotational symmetry (not shapes, objects e.g. foods, logos)


















Complete this table




Order
Degrees of rotation to match its shape
2
180°
3
120°
4
90°
5
72°
10
36°



Test score: 80%


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