A farmer challenges an engineer, a physicist, and a mathematician to fence off the large amount of area using the least amount of fence. The engineer made his fence in a circle and said it was most efficient. The physicist made a long line and said that the length was infinite. Then he said that fencing half of the Earth was the best. The mathematician laughed at the others and with his design, beat the others. What did he do?

• The mathematician asked them to to sit together in minimum area and put fence around them.
  
  He claimed that he has managed to fence off the largest amount of area ( all earth except that area occupied by 4 persons ) using the least amount of fence.
• 15 years agoHelpfull: Yes(0) No(0)
• He made a small fence around all of them and told that he has fenced whole the earth from them and they are outside the fence.
• 15 years agoHelpfull: Yes(0) No(0)