Square pyramid is a regular polyhedron. True/False

Answer :

we know Regular polyhedron : A polyhedron whose all faces are congruent (  equal ) polygons and in which the same number of faces meet at each vertex .

And We know generally five example of regular polyhedron  , As :

Regular tetrahedron (four faces), cube (six), octahedron (eight), dodecahedron (twelve), and icosahedron (twenty).

Here Octahedron is we get by joining square base pyramid by is square side .

So ,

We can say that only square pyramid is not a regular polyhedron .

SO,
Given statement is false .