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Geometry jE om' i trE, the branch of mathematics that deals with the deduction of the properties , measurement, and relationships of points, lines, angles, and figures in space |
| CONTENTS |
Rubik's Cube was invented by a Hungarian professor in 1974, as a mental exercise for his students. The cubic puzzle quickly became a craze in Hungary, then spread across Europe, and by 1980 was the top-selling toy in the United States. |
| SKC Films Library >> Science >> Mathematics |