11 faces and 11 corners (vertices).
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i think there is 12 faces are in the decagonal prism this is mhel a decagonal prism has 11 faces
5 faces 8 edges 5 corners (vertexes) * * * * * Wrong! The answer given above is for a SQUARE based pyramid. A triangle based pyramid, or a tetrahedron, has 4 faces, 6 edges and 4 corners (vertices).
A pyramid with a rectangular (square) base has:Eight edges,Five vertexes (corners)Five faces
It has 2 bases and 12 faces
3 faces and 8 corners