rhombuses
Four equal sides
Rhombuses is the plural of rhombus, a four-sided figure with all sides equal length—like a square tilted so it has no right angles.
The shape appears in playing card diamonds, kite designs, and tile patterns.
The floor was laid with rhombuses of black and white marble.
The alternative plural rhombi sounds more technical or pretentious.
Quadrilateral with paired parallels
- quadrilateralFour-sided closed figure
- polygonMultisided plane figure
- verticesCorner points of shapes
- diagonalsLines joining opposite corners
sides · congruent · equilateral · plane · area · perimeter · bisect · tessellation
Crystallized carbon gemstone
- squareRhombus with right angles
- kiteWind-flown tethered toy
- trapezoidPolygon with parallel pair
- lozengeMedicated tablet for sucking
harlequin · argyle · tile · lattice · grid · pattern · outline · form
Lines joining opposite corners
- reflectionReturned light or thought
- bilateralInvolving two parties
- mirrorReflective viewing surface
- axesHeaded chopping tools
bisection · congruence · rotation · balance · proportion · perpendicular · intersection · midpoint
parallelogram
Quadrilateral with paired parallels
- quadrilateralFour-sided closed figure
- polygonMultisided plane figure
- verticesCorner points of shapes
diagonals · sides · congruent · equilateral · plane · area · perimeter · bisect · tessellation · convex
diamond
Crystallized carbon gemstone
lozenge · harlequin · argyle · tile · lattice · grid · pattern · outline · form · figure
diagonals
Lines joining opposite corners
- reflectionReturned light or thought
- bilateralInvolving two parties
- mirrorReflective viewing surface
axes · bisection · congruence · rotation · balance · proportion · perpendicular · intersection · midpoint · equivalence
argyle
Multicolored diamond textile pattern
- harlequinMasked comic servant character
- checkerboardAlternating square pattern
- mosaicInlaid pictorial arrangement
pattern · textile · quilting · tiling · motif · geometric · decorative · lattice · inlay · parquet
rhombusesrectangles
Four-sided, all right angles
squares · circles · oblongs · trapezoids · triangles