If V be the volume of a tetrahedron a...

If `V` be the volume of a tetrahedron and `V '` be the volume of another tetrahedran formed by the centroids of faces of the previous tetrahedron and `V=K V^(prime),t h e nK` is equal to `9` b. `12` c. `27` d. `81`

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If `V` be the volume of a tetrahedron and `V '` be the volume of another tetrahedran formed by the centroids of faces of the previous tetrahedron and `V=K V^(prime),t h e nK` is equal to `9` b. `12` c. `27` d. `81`

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