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possible related topics order of rotational symmetry

 

Real-life symmetry is never exact, and learners might notice imperfections that reduce the rotational symmetry to order 1 rather than 5.

 

Car hub caps and light fittings are good places to look for interesting symmetry, such as that of the dodecahedral lampshade shown below.

 

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Colin Foster 2012, www.foster77.co.uk