Page:Sheet Metal Drafting.djvu/200

186 83. The Scalene Cone.—Figure 264 shows the top view of a scalene cone whose base is represented by a circle and whose apex falls in a line perpendicular to the plane of the base at the point 2.

Figure 265 is an elevation of the cone, showing the apex, point 3, on the perpendicular line drawn from point 2. The line 2-3 is the altitude of the cone.