Let a triangle is formed whose vertices are the vertices of a cube. The total number of

No. of vertices of a cube are

The number of triangles whose vertices are a the vertices of an octagon but none of whose sides happen to come from the sides of the octagon is

The number of triangles whose vertices are a the vertices of an octagon but none of whose sides happen to come from the sides of the octagon is

The number of triangles whose vertices are at the vertices of an octagon but none of whose sides happen to come from the sides of the octagon is:

The number of triangle whose vertices are at the vertices of an octagon but none of whose sides happen to come from the sides of the octagon is