Question

A square is a rhombus

Always true
Sometimes true
Never true

Answer 1

http://usercontent2.hubimg.com/5493203_f260.jpg <--- what do you think? is it?

Answer 2

A square has 4 equal sides and 4 equal angles (all equal to 90 degrees)

A rhombus has 4 equal sides

So based on these definitions, ALL squares are a rhombus. Pick any square, it's going to be a rhombus since it has 4 equal sides.

If you think about it in terms of a venn diagram, then you'd have the set of all squares contained in the set of rhombuses



it's possible to make a rhombus that isn't a square, but not the other way around