A cube is a 3d square. A sphere is a 3d circle. A prism is a 3d rectangle.
a 3D shape has 3 dimensions; length, with and depth
There is not such thing as a three-dimensional triangle. You are thinking of a tetrahedron which is a three-dimensional figure with each side being a triangle. This has four vertices.
A three-dimensional figure with 30 faces is called a triacontahedron.
A 3D triangle
It is a 2D net that represents a 3D figure
A triangular pyramid is a pyramid with a triangular base; all pyramids are by definition three-dimensional figures, so a triangular pyramid is indeed 3D.
3D stands for 3 dimensional. If something is 3 dimensional it appears to you as if it were real and lifelike.
A spiral is first defined as a flat figure. Sometimes it is used to describe a three dimensional case.
No, because a shape without high is considered a two dimensional figure. Hight gives the object the three dimensional status.
3D
It has three dimensions: length, height, and width