Challenge Level

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 .