2 shadows are around it
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One, around the base. As a matter of fact it is the only edge of a cone which also has a vertex at the point.
If you're asking "How many surfaces are there on a 3-dimensional cone? then the answer is 2: The first surface is the circular base. The 2nd is the actual "cone" part that wraps around to a point above the circle.
A cone has two faces.
A cone does not have any sids. A finite cone has two faces.
A cone has one curved edge