How to construct and draw the front elevation, plan and end Elevation for Truncated Cone.

This video explains how to construct and draw three elevations of the truncated cone. And also, this video explains how to construct and draw the auxiliary view for cutting plain looking perpendicular to the cutting plain.

Example: A cone has a base diameter of 80mm and height of 100mm. A 45-degree inclined cutting plan cuts the axis of the cone at 60mm in height
(a) Draw the front elevation, End elevation and plan in first angle projection.
(b) Draw the auxiliary view of the cutting surface.