Word · Frequency #17871
polygon
多边形；多角形
polygon
- 1.
A plane figure bounded by edges that are all straight lines.
- 2.
a closed plane figure bounded by straight sides
多边形(由直线边围成的封闭平面图形)
- 3.
The boundary of such a figure.
- 4.
A figure comprising vertices and (not necessarily straight) edges, alternatingly.
- 5.
Such a figure and its interior, taken as a whole.
多边形(由直线边围成的封闭平面图形)；多角形；多边形；[计] 多边形
In use
A triangle is a polygon with three sides.
The students drew different polygons and compared their angles.
To find the area of this polygon, divide it into smaller triangles.
a polygon with [number] sides
描述边数时用 with，如 a polygon with six sides。
An octagon is a polygon with eight sides.
八边形是有八条边的多边形。
a polygon has [number] sides
这是说明边数的常用句型；复数主语用 have。
This polygon has five sides.
这个多边形有五条边。
be a polygon
用系动词 be 加 a polygon 表示某图形属于多边形。
Connections
Collocations
- regular polygon
- 正多边形
- A square is a regular polygon with four equal sides.正方形是有四条等边的正多边形。
- convex polygon
- 凸多边形
- In a convex polygon, every interior angle is less than 180 degrees.在凸多边形中，每个内角都小于180度。
- irregular polygon
- 不规则多边形
- An irregular polygon can have sides of different lengths.不规则多边形的边长度可能不同。
- polygon mesh
- 多边形网格
- The 3D model is built from a detailed polygon mesh.这个三维模型由精细的多边形网格构成。
- polygon tool
- 多边形工具
- Use the polygon tool to draw a five-sided figure.使用多边形工具绘制一个五边形。
Synonyms
Learner notes
Memory Tip
把poly想成“多”，gon想成“角”，多条边围成的封闭图形就是多边形。
Context & Register
语域：neutral 常见场景：geometry class、math textbook、computer graphics 该词是几何学中的标准术语，语气中性，多用于数学教材、课堂以及计算机图形学等场景。日常口头描述一般形状时较少用，较常直接说 shape。整体没有明显的正式或非正式色彩。
Pronunciation & Spelling
这些以 -gon 结尾的词中，hexagon、pentagon、octagon、decagon 与 polygon 押韵（重读音节元音均为 /ɑ/，后面都是 /ɡɑn/）。注意 wagon 拼写以 -gon 结尾，但发音是 /ˈwæɡən/，并不押韵。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.