Rhombuses whose acute angles are 3 degrees would be one subset.
2 rhombuses
there are three rhombuses in an octagon.
Squares and rhombuses (rhombi?)
not all the time
Only rhombuses are rhombuses. Some rhombuses are squares.
2 rhombuses and 2 triangles
4
trapezoids have 4 sides, rhombuses have 4 sides
There are 32 vertices in 8 rhombi (or rhombuses, for those that do not appreciate languages).
2
1