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A pyramid
polyhedron
A sphere...
A right square based pyramid.
sides are the face of a 3d shape and verticies are the corner of the shape
pyramid
cube
A pyramid
cube
It is a triangular prism that has 6 vertices, 9 edges and 5 faces.
A triangular prism.
It is a square based pyramid that has 5 faces, 8 edges and 5 vertices
It cannot be a simply connected 3d shape because it does not satisfy the Euler characteristic.
A sphere.
Triangular prism
A sphere is not a 3dshape
cube