A hemisphere, a cone.
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Squares, rectangles, and the rhombus.
it if called a edge for a 3D shape
There is no such thing as a 3d triangle. A 3d shape which has only equilateral triangular faces can be a tetrahedron which has 4 faces or an icosahedron which has 20.
No, it is a 2-D shape.
A pentagonal pyramid.