Whats the definition of a 3 dimensional figures?

Question

whats the definition of a 3 dimensional figures?

and whats the definition of a 2 dimensional shapes?

thanks, 10 points!

Answer 1

3 dimensional figures

covers 3 planes

has volume, not just area.

measures volume in cubic units.

A 3D figure is a figure that has height, depth, and width. Such a figure does not lie entirely in a plane. The "3" in 3D refers to the number of dimensions.  The "D" stands for dimension, which is an axis in a coordinate system.

A hexahedron is a cube, a tetrahedron is a pyramid, and an icosahedron is a twenty-sided figure.

examples of 3D objects.  sphere, cone, cube, pyramid, and cylinder.

Similarly a 2-d figure covers only 2 planes and u can only measure length and area.they are all flat