Uniform Antiprism is Semiregular Polyhedron/Mistake 2

Source Work

2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.):

antiprism

Mistake

If the end faces are regular and the triangular faces are equilateral, the antiprism is a semi-regular polygon.

Correction

The term semi-regular polygon is a mistake.

It should say semi-regular polyhedron.

In the $6$th edition, this has been corrected.

Further Correction

Technically, right-regular antiprisms with equilateral triangles as side faces which also have equilateral triangles as bases are not semi-regular polyhedra, as they are octahedra, and so all faces are congruent.

The faces of a semi-regular polyhedron are specifically not all congruent.

Sources

• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): antiprism