Singular: Rhombus Plural: Rhombi

A rhombus is an equilateral parallelogram (quadrilateral) -a polygon with four equal sides in length

Other terms for a rhombus is a diamond or lozenge

Diagonals of a rhombus are perpendicular bisectors to each other

Interior and exterior angles equal to 360 degrees

All sides are congruent

rhombus forms two congruent isosceles triangles

Consecutive angles are supplementary

The diagonals of a rhombus forms a right triangle

Base: Any side of the rhombus can be considered a base

Altitude: The perpendicular distance from the base to the opposite side

Area: The product of both diagonals divided by 2 (D1 x D2)/2

Common area: (base x altitude)

Perimeter: The distance around the rhombus (sum of the lengths)

DIAGRAM OF TWO RHOMBI RHOMBIC TILING