A Treatise on a Vox of Instruments and the Slide-rule: For the Use of Gaugers, Engineers, Seamen and Students |
Common terms and phrases
12 inches 40 inches bottom breadth bung bushels cask centre chord circle circumference compasses cone contain course and distance cube cylinder D line departure depth describe the arc diagonal diff difference of longitude dimensions divide divisor dodecagon ellipse EXAMPLES figure Formula frustum gallons gauge point globe height Hence Illustrated inches deep inscribed invert the slide inverted line length Let the slide logarithmic mean proportional measures merid meridian middle frustum miles morocco multiply nonagon number of degrees parallel distance parallel ruler parallel sailing parallelogram perpendicular place of decimals plane sailing polygon practical prism protractor pyramid quotient radius regular polygon required the course right angles rule secant second division sector set the beginning sine slide-rule solids sphere spheroid square feet square root straight line subtract surface Take the distance take the parallel twice vessel Volume yards
Popular passages
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Page 17 - A circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the center, Fig.
Page 125 - And since similar surfaces are to each other as the squares of their like dimensions, the area of any circle will be equal to the square of its diameter multiplied by .7854.
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Page 124 - Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area.