A cone of 90 mm diameter of base and 90 mm height stands on its base on the ground. a semi- circular hole of 50 mm diameter is cut through the cone. the axis of the hole is horizontal and intersects the axis of the cone. it is 30 mm above the base of the cone. the flat surface of the hole contains the axis of the cone and is perpendicular to the vp. draw three views of the cone and also develop the surface of the cone.
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its not a question of music......ask in math..
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