Neither is it-diflricult to find the area of a circle mechanically. For the area of a circle being found by multiplying the circumference by the length of the radius, and dividing the product by 2 (page 165, 3dly), we need only pass a string around theanbsp;...

Title | : | First lessons in Plane Geometry. Together with an application of them to the solution of problems, etc |

Author | : | Francis Joseph GRUND |

Publisher | : | - 1830 |

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