A quadrilateral (4-sided polygon) with 4 equal length sides and NO 90-degree angles between them.
rhumbos
No but they are both 4 sided quadrilaterals * * * * * Also, both have all four sides of equal length. And, the word is a rhombus, not rhumbos!
base times height.
No, never. But it is always a rhombus.
rhumbos