Well, honey, a three-dimensional diamond is called a "diamond." It doesn't matter if it's 2D or 3D, it's still a diamond. So, go ahead and dazzle 'em with that sparkly gemstone, whether it's on paper or popping out of the screen.
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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.
an octahedron: basically two square based pyramids with their bases stuck together.
Yes but the correct term is octohedron
A 3D name for a pentagon is a pentagonal prism.
A hexahedron is the name for a 6 sided 3D shape.
they dont have a name really :/ 3D squares are cubes