If the side of a dodecagon be 1, its area will be equal to 3 times the tang, of 75Ad = 3 x (2 +i/3) = Ilaquot;ly6l524 nearly; and, the areas of plane ... 6 equal parts, or will make a hexagon; then bisect each of those parts, which will divide the whole into 12 parts, for the dodecagon. ... the former ; and of which he gave a particular account in a paper presented to the Royal Society, and which was printed in the Philos.

Title | : | A Philosophical and Mathematical Dictionary Containing... Memoirs of the Lives and Writings of the Most Eminent Authors |

Author | : | Charles Hutton |

Publisher | : | - 1815 |

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