Whats the difference between a rhombus and a parallelogram?
Rhombus is a quadrilateral with four congruent sides
Parallelogram is a quadrilateral with four parallel sides, two by two
You can't exactly say that there's a 'difference', because a rhombus is just
a special kind of parallelogram ... one whose sides are all equal. So every
rhombus IS a parallelogram.