With Numerous Problems, Curious and Useful, Solved by Various Modes . ... Let the number of sides of the polygon be made very great, and of course very short, and the perimeter of the polygon will ... whether the triangle be right angled or otherwise, and hence the rule for finding its area is to multiply the base by half the anbsp;...

Title | : | Lectures on the Philosophy of Arithmetic and the Adaptation of that Science to the Business Purposes of Life |

Author | : | Uriah Parke |

Publisher | : | - 1849 |

Continue