both are solid.Cube is 3D while square is 2D.cube is used to describe solid shape in 3Dwhile square is used to describe the shape of the surface which is only 2D
3D means three-dimensional. An example is a box (length x width x depth).
special slim light box drawing machine make 3D V-cutting to light guide plate, make the astigmatism of the light guide plate uniformly.
The difference between 3D and 4D is that 3D it pops out and 4D you can smell, taste and it will pop out.
No, humans can only see in 3D. The only way a human can see in 4d is with the help of technology.
there is no name for it. if you really need to know than you could and needed an answer you could just call it a three dimensional heart or 3d heart shaped box or whatever you want to call it as long as people can understand your answer.
A regular (3D) solid could be a cube or cuboid, and a rigid plastic ruler (as used in a school) or tape measure could be used. A sphere could be measured by a flexible tape measure around it widest circumference, as used in tailoring. Nowadays, there are instruments that use a laser beam to measure regular and irregular 3D shapes.
A solid.
Solid geometry.
It's a cylinder. Look at http://en.wikipedia.org/wiki/Cylinder_(geometry)
A cuboid or rectangular prism.
A solid.
A solid
3D trapezoid
A box
A box
To measure the 3D volume:# measure the length and width of the pool (in cm)# measure the depth of the pool (also in cm)# multiply the three together (the answer will be in cm3)*The answer won't be exact, as your pond probably isn't cube-shaped. It should be quite close though.*Note: 1cm3 = 1ml