hemisphere a hemisphere is half of a sphere This is a pentagonal prism
A pentagonal prism will have 15 edges.
22
15
6 faces, 12 edges
One.
none
Tweleve
It has one circular edge.
It has 12 edges, 6 faces and 8 vertices
A 2D rectangle has no edges but has 4 boundaries, and a 3D rectangle is a rectangular prism and has 12 edges.
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