A treatise on special or elementary geometry (1877)
Olney, Edward, 1827-1887, Olney, Edward, 1827-1887. Elements of trigonometry, plane and spherical · New York : Sheldon · leaf 43
ere 35 feet apart ? * The imagination may be aided by supposing a tine elastic cord stretched between thepoints of the dividers and carried by them. 22 ELEMENTARY GEOMETRY. Ex. 10. What kind of a line is represented by water flying from aswiftly-revolving grindstone ? Ex. 11. If you draw two chords… … 55, TJieorem*—The cliord of a sixth part of the circumferenceof a circle is just equal to the radius of the same circle. III.—If I draw a circle, and then, being careful not to open or close the di-viders, place the shaip point on tlie circumferenceat some point, as A, and mark the cucumferencc…
Geometry · Trigonometry
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