| 词汇 | heptagon |
| 释义 | heptagon noun[ C ] uk /ˈhep.tə.ɡən/ us /ˈhep.tə.ɡɑːn/ a flat shape with seven straight sides七边形 Anar Babayev/iStock/Getty Images Plus/GettyImages Geometrical shapes -cornered circularly congruently conic cylindrically lozenge orbicular ovally ovoid parallelogram pentagon polyhedron polytope prism pyramid quadrilateral rectangle rectangular rhombus three-dimensional Related wordheptagonal Examples of heptagonheptagon The design of the coin has not yet been decided, but its shape, which will be an equilateral curved heptagon, has been settled. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The heptagonal prism is a uniform polyhedron, with two regular heptagon faces and seven square faces. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Figure 7a shows a heptagon cut into smaller pieces (in two different ways) to yield a proof of the law of cosines. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, there exist arbitrarily large sets of points in general position that contain no empty convex heptagon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In a regular heptagon, in which all sides and all angles are equal, the sides meet at an angle of 5/7 radians, 128.5714286 degrees. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The illustration shows an example in which the seven points are the vertices of a regular heptagon. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, some geometrical constructions are not possible with those tools, including the heptagon and trisecting an angle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The badge is a black heptagon bearing a silver owl, the whole contained within a red annulet. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Apart from the heptagonal prism and heptagonal antiprism, no convex polyhedron made entirely out of regular polygons contains a heptagon as a face. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, sea stars display the symmetry of a pentagon or, less frequently, the heptagon or other polygons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a seven sided coin, an equilateral curve heptagon of constant breadth (3 centimetres) and mass 13.5 grams. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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