A cone of base diameter 60 mm and height 70 mm is resting on its base on HP. It is cut by a plane perpendicular to both HP and VP at a distance of 15 mm to the left of the axis. Draw the development of the lateral surface of the right portion of the cut cone. $$ (2 \times 17=34 \text { Marks) } $$

Explanation

To draw the development of the lateral surface, we need to project the cut surface onto the front view. The cut surface is a circular arc with a radius of 30 mm and an angle of 60 degrees. The development of the lateral surface can be drawn by projecting the cut surface onto the top view.


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