Definition:Three-Dimensional Figure/Also known as

Three-Dimensional Figure: Also known as

A common term for a three-dimensional figure is solid figure.

However, this is misleading, as it is usual to be studying the surfaces of such figures, which themselves are not solid as such.

Some sources use term solid to mean a solid figure, but $\mathsf{Pr} \infty \mathsf{fWiki}$ tries to limit that term for that particular physical state of matter.

In the words of Euclid:

A solid is that which has length, breadth, and depth.

(The Elements: Book $\text{XI}$: Definition $1$)

Souces

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): solid
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): solid