A text-book of geometrical drawing, for the use of mechanics and schools, in which the definitions and rules of geometry are familiarly explained .. (1850)
Minifie, William, 1805-1880. [from old catalog] · Baltimore, W. Minifie & co. · leaf 83
ene cone. Problem 45. Fig. 6. To draw the Covering. ■o 1st. With a radius equal to the sloping height of the cone^ from Ey describe an indefinite arc^ and draw the radius E, F.2nd. Draw the circle of the base^ and divide its circumference into any number of equal parts^ say twelve.3rd. With one of…