bát giác
Học thuậtThân thiện
Definition
- Noun:
- Octagon: A flat shape with eight straight sides and eight angles.
- Octagonal shape: The quality or form of having eight sides and eight angles.
Usage Examples
- Noun:
- Hình bát giác thường được dùng trong thiết kế. (The octagon is often used in design.)
- Cô ấy vẽ một bát giác hoàn hảo. (She drew a perfect octagon.)
- Đây là một tấm gương bát giác. (This is an octagonal mirror.)
Advanced Usage
- "the bát giác": Can be used to refer to a specific octagon shape in a formal or geometric context.
- Bát giác trong hình học có tổng các góc trong bằng 1080 độ. (The octagon in geometry has internal angles summing to 1080 degrees.)
Variants and Related Words
- Bát diện (noun): Octahedron (a three-dimensional shape with eight faces).
- Kim cương thường có cấu trúc tinh thể dạng bát diện. (Diamonds often have an octahedral crystal structure.)
- Hình bát giác (noun phrase): Octagonal shape. (This is a compound phrase where "bát giác" is the core noun modified by "hình").
- Có hình bát giác (adjective phrase): Octagonal, having an octagon shape.
Synonyms
- Hình tám cạnh: Eight-sided shape. (A descriptive synonym).
- Khối tám mặt: Eight-faced solid (refers to 3D, not a direct synonym for the 2D shape).
Notes on Meaning
- Geometry: In mathematics, "bát giác" strictly refers to a two-dimensional polygon.
- Architecture & Design: The term is commonly used to describe the floor plan, layout, or cross-section of buildings, rooms, tiles, etc.
- Tháp chuông có mặt cắt ngang hình bát giác. (The bell tower has an octagonal cross-section.)
noun
- Octagon, octagonal shape
- toà nhà bát giácoctagonal building