Volume 1

The young trigonometer's compleat guide. Being the mystery and rationale of plane trigonometry made clear and easy / [Benjamin Martin].

  • Benjamin Martin
Date:
1736
Catalogue details

Licence: Public Domain Mark

Credit: The young trigonometer's compleat guide. Being the mystery and rationale of plane trigonometry made clear and easy / [Benjamin Martin]. Source: Wellcome Collection.

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    XII. A Semi circle ( /. e half a Circle) is a Figure contained between the Diameter and half the Periphery of a Circle; as ABC. XIIL A Quadrant is one Quarter of a Circle, or half the Semicircle; as the Figure BCD. XIV. The Sector of a Circle is a Figure included between two Semidiameters and an Arch of the Periphery ; as A C D. XV. A Chord Line, or Sub- tenfe of an Arch is any Right Line dividing the Circle into two unequal Parts, and is lefs than the Diamiter ; as A E. C XVI. A Segment of a Circle is the Figure included between the Chord Line and Arch of the Circle, and is greater or lefs than a Semicircle; as the figure ADE, or AGE. XVII. An Angle in the Seg¬ ment of a Circle is that which touchetli the Periphery, and is fubtended by a Chord Line; as either of the three Angles A, B, or C. XVIII
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