A text book of geometrical drawing, for the use of mechanics and schools, in which the definitions and rules of geometry are familiarly explained (1849)
gled triangle about one of its sides.2nd. If both legs of the triangle are equal, as S. JV* and JV*. 0, fig. 2, it would generate a right angled cone ; the angle S being a right angle.3rd. If the stationary side of the triangle be longest, as M, JV*, the cone will be acute, and if shortest, as T.… … —-^■■- lin- , I lyiin /■/V/. A I./ ■ / I 11 !• \ \K^ \
