Divide Up       Notes on Investigation

 

Investigation 1

From this position it is possible to make all the possible ratios by moving just one match.

 

 

 

 

 

 

 

 

 

Investigation 2

Two matches placed like this allow all partitions to be made

 

 

 

 

 

 

 

Investigation 3

It is not possible. The triangle cannot be divided into the ratio 2:2:5

 

Investigation 4

 

15 different ratios can be created using this starting point. The following cannot

1:1:14,  1:3:12   1:4:11   3:3:10    4:4:8    4:6:6

These however can be done by moving two matches..

 

A better starting position has yet to be found. May be you can find one?