'Excuse me, Slave', said the Princess, 'I have a job for you'. The Princess handed the sculptor a big ball of clay. 'I would like some decorations for my new palace. I want you to build me lots of little pyramids out of this clay. The base has to measure 8 centimetres by 8 centimetres, and they have to be 6 centimetres high.
The slave looked at the ball of clay, and measured it. It's diameter was 20 centimetres, and it seemed to be a perfect sphere. He wondered how many pyramids he could make... do you know?
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