A diamond or a quadrilateral.
a kite is a shape in geometry, and math. it resembles a rhombus, a diamond like shape used in math and geometry.
sphere
postulates
You can call it anything you like.
a rhombus
In geometry, a diamond MUST have 4 sides!
A diamond or a quadrilateral.
you play on a softball diamond. lol
In geometry, a square and a diamond both have four sides. However, the angles are different, and fixed.
a kite is a shape in geometry, and math. it resembles a rhombus, a diamond like shape used in math and geometry.
Geometry is used in baseball in the shape of the field and diamond. It is also used when players decide where they need to throw the ball.
Euclidean geometry, non euclidean geometry. Plane geometry. Three dimensional geometry to name but a few
Solid Geometry
The name for a three-dimensional diamond shape is a "diamond." In geometry, a diamond is a type of parallelogram with four sides of equal length forming two pairs of congruent angles. It is also known as a rhombus, with all sides equal in length but with the angles not necessarily right angles.
In geometry, a diamond is 4 sided and so it is not clear what you mean by an "8 sided diamond". In jewellery, a diamond has faces or facets, not sides and, in any case, a diamond with eight facets is a very crudely cut stone.
"The Diamond Theorem" -- see below -- is described as "... finite projective geometry," showing the number of permutations possible in "... the four-diamond figure as a 4x4 array of two-colour, diagnnally-divided squares."