No, every parallelogram is not a rhombus.
Such a figure is called a rhombus.
It is a special kind of parallelogram.
No, none of them are. But they are all parallelograms.
An equilateral parallelogram is called a rhombus.
Yes, but only if it is a square. A square is an equiangular rhombus, and a rhombus is an equilateral parallelogram.
Yes, it is a parrallelogram, or that's what my teacher tells me
A parallelogram with congruent sides is a rhombus.
A parallelogram with equal sides is a rhombus.