Question

If a tetrahedral is truncated from each corner, which of the following options is not true?

• A. There are 4 triangular faces in truncated tetrahedral
• B. There are 4 hexagonal faces in truncated tetrahedral
• C. There are 12 corners in truncated tetrahedral
• D. There are 20 edges in truncated tetrahedral

Answer 1

The correct option is D There are 20 edges in truncated tetrahedral

When a tetrahedron is truncated from each corner, following things happen:
(i) A triangular face will be generated at each corner resulting in 4 triangular faces.
(ii) All 4 earlier triangular faces will convert to 4 hexagonal faces.
(iii) There will be 12 corners.
(iv) A total of 18 edges will be produced.