Sided Polygon

Some articles on polygons, sided, polygon:

Pi - History - Polygon Approximation Era
... calculating the value of π was a geometrical approach using polygons, devised around 250 BC by the Greek mathematician Archimedes ... doubling the number of sides until he reached a 96-sided regular polygon ... By calculating the perimeters of these polygons, he proved that 223/71 < π < 22/7 (3.1408 < π < 3.1429) ...

Famous quotes containing the word sided:

    I have desired to go
    Where springs not fail,
    To fields where flies no sharp and sided hail
    And a few lilies blow.
    Gerard Manley Hopkins (1844–1889)