I have no idea. sorry. I do feel ashamed of myself, though :(
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A cone fits this description. A hemisphere (dome) would also fit this description.
A 5 sided pentagon fits the description
Neither the lines nor the list of possible descriptions is visible to me, so there's not a thing I can do to help you. Oh woe is me, I feel so inadequate.
A square fits into the description.
A cone fits the description.