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11th century BC - Wikipedia, the free encyclopedia (509 words) |
 | 1079 BC - Death of Zhou cheng wang, King of the Zhou Dynasty of China. |
| 1053 BC - Death of Zhou kang wang, King of the Zhou Dynasty of China. |
| 1002 BC - Death of Zhou zhao wang, King of the Zhou Dynasty of China. |
| ENCYCLOPEDIA OF TRIANGLE CENTERS (10360 words) |
| X(1) is the point of concurrence of the interior angle bisectors of ABC; the point inside ABC whose distances from sidelines BC, CA, AB are equal. |
| Construct the equilateral triangle BA'C having base BC and vertex A' on the negative side of BC; similarly construct equilateral triangles CB'A and AC'B based on the other two sides. |
| Let U and V be the points on sideline BC met by the interior and exterior bisectors of angle A. The circle having diameter UV is the A-Apollonian circle. |
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