mặt bên
Definition
- Noun (Geometry):
- Lateral face: A side surface that bounds a three-dimensional geometric solid, excluding its top and bottom bases. It is one of the faces connecting the edges of the bases.
- Side face: A planar surface on the side of a prism, pyramid, or similar solid.
Usage Examples
- Noun:
- Hình lăng trụ này có năm mặt bên. (This prism has five lateral faces.)
- Diện tích của mỗi mặt bên hình chóp được tính riêng. (The area of each lateral face of the pyramid is calculated separately.)
Advanced Usage
- In technical or architectural contexts, "mặt bên" can refer to the side elevation or side view of a structure or object.
- Bản vẽ thể hiện rõ mặt bên của tòa nhà. (The drawing clearly shows the side elevation of the building.)
Variants and Related Words
- Mặt đáy (n): Base face (the top or bottom face of a solid).
- Mặt phẳng bên (n): Lateral plane.
- Diện tích xung quanh (n): Lateral surface area (the total area of all lateral faces).
Synonyms
- Side face: A planar surface on the side of a solid.
- Lateral face: A face that is not a base of a solid.
- Lateral surface: The collective area of the side faces.
Related Terms
- Hình lăng trụ (n): Prism (a solid with congruent bases and rectangular lateral faces).
- Hình chóp (n): Pyramid (a solid with a polygonal base and triangular lateral faces meeting at an apex).