8), is supplemental to the angle A B D, and the angle A. B D supplemental to the angle A B C. A vertical angle is formed by the production of both its sides; thus in Fig. 9, if the sides of the angle 1) E B are produced to A and C respectively, then D E B, A E C, are called vertical angles, and ... of the circle; the describing line its radius, and the boundary traced by the remote end of that line its circumference;anbsp;...

Title | : | The Circle of the Mechanical Arts; Containing Practical Treatises on the Various Manual Arts, Trades, and Manufactures. 2. Ed. -London, Rees 1815 |

Author | : | Thomas Martin |

Publisher | : | - 1815 |

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