hình

Etymology
.

Noun

 * 1) image
 * 2) a figure or a silhouette
 * 3)  a photo; a picture
 * 4)  a shape
 * 1)  a shape

Usage notes

 * In 2D geometry, hình refers to "shape". In 3D geometry, it also refers to the surfaces of solids, especially when calculating their surface areas rather than their volumes whereby is used. For example, you calculate the surface area of a, but you calculate the volume of a , even though both of those terms can simply be translated as "sphere".