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## 'Lighting up Time' printed from http://nrich.maths.org/

This lampshade was photographed in Rimini in Italy. In Africa
candle holders exactly like this are often made from wire.

- Do you know the
mathematical name for this shape?
- Can you see lots
of triangles?
- What "type" of
triangles are they and how many of them were needed to make this
lampshade?
- What other shapes
can you see?
- Could you make a
polyhedron like this from card? How would you do it?

There's another image you might like to take a look at in the

Notes .