User contributions for 112.207.23.172
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18 January 2014
- 15:0915:09, 18 January 2014 diff hist +24,104 N Area of a disk No edit summary
12 January 2014
- 17:4717:47, 12 January 2014 diff hist +7,455 N Icosidodecahedron →Cartesian coordinates