Couleurs et Formes - Polygones

Lisez cette leçon pour apprendre les noms des polygones en anglais, tels que "polygone convexe", "heptagone" et "hendécagone".

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regular polygon

[nom]

a two-dimensional closed shape with straight sides and equal angles between adjacent sides, and all sides have the same length

polygone régulier, figure géométrique régulière

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irregular polygon

[nom]

a polygon that does not have all sides or angles equal in size or measure, making it non-regular and lacking symmetry

polygone irrégulier, figure polygonale irrégulière

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convex polygon

[nom]

a geometric shape that has all its interior angles measuring less than 180 degrees, causing the polygon to curve outward

polygone convexe, figure géométrique convexe

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concave polygon

[nom]

a geometric shape that has at least one angle measuring greater than 180 degrees, causing the polygon to curve inward

polygone concave, figure géométrique concave

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quadrilateral

[nom]

(geometry) a flat figure with four straight sides and four angles

quadrilatère

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pentagon

[nom]

a geometric shape with five angles and five straight sides

pentagone

Ex: She drew a pentagon on the chalkboard to illustrate its shape to the students .Elle a dessiné un **pentagone** au tableau pour illustrer sa forme aux élèves.

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hexagon

[nom]

(geometry) a closed shape with six straight sides and six angles

hexagone

Ex: In geometry class , students learned how to calculate the area of a hexagon.En cours de géométrie, les élèves ont appris à calculer l'aire d'un **hexagone**.

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heptagon

[nom]

a seven-sided plane shape consisting of seven line segments or edges that meet at seven interior angles

heptagone

Ex: One version of the game featured a board laid out in a grid of non-uniform heptagons instead of the usual squares .Une version du jeu présentait un plateau disposé en une grille d'**heptagones** non uniformes au lieu des carrés habituels.

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octagon

[nom]

(geometry) a polygon consisting of eight straight sides and eight angles

octogone

Ex: The child 's drawing featured a perfectly symmetrical octagon.Le dessin de l'enfant présentait un **octogone** parfaitement symétrique.

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nonagon

[nom]

(geometry) a flat shape consisting of nine straight sides and nine angles

nonagon

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decagon

[nom]

(geometry) a flat polygon with ten straight sides and ten angles

décagone

Ex: The children were challenged to draw a perfect decagon during their geometry class .Les enfants ont été mis au défi de dessiner un **décagone** parfait pendant leur cours de géométrie.

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hendecagon

[nom]

(geometry) a flat figure consisting of eleven straight sides and eleven angles

hendécagone

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dodecagon

[nom]

(geometry) a flat figure that consists of twelve sides and twelve angles

dodécagone

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tetradecagon

[nom]

a polygon with fourteen sides and fourteen angles

tétradécagone, polygone à quatorze côtés

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tridecagon

[nom]

a polygon with thirteen sides and thirteen angles

tridécagone, polygone à treize côtés

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pentadecagon

[nom]

a polygon with fifteen sides and fifteen angles

pentadécagone, polygone à quinze côtés

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hexadecagon

[nom]

a polygon with sixteen sides and sixteen angles

hexadécagone, polygone à seize côtés

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heptadecagon

[nom]

a polygon with seventeen sides and seventeen angles

heptadécagone, polygone à dix-sept côtés

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octadecagon

[nom]

a polygon with eighteen sides and eighteen angles

octadécagone, polygone à dix-huit côtés

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enneadecagon

[nom]

a polygon with nineteen sides and nineteen angles

ennéadécagone, polygone à dix-neuf côtés

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icosagon

[nom]

a polygon with twenty sides and twenty angles

icosagone, polygone à vingt côtés et vingt angles

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pentagram

[nom]

a five-pointed star

pentagramme

Ex: She drew a pentagram on the front of her notebook .Elle a dessiné un **pentagramme** sur la couverture de son cahier.

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hexagram

[nom]

(geometry) a flat star-shaped figure with six points that can be formed by making equilateral triangles on each side of a regular hexagon

hexagramme

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trilateral

[nom]

a three-sided geometric shape

trilatère, figure à trois côtés

Ex: As a pattern , the designer chose a trilateral for the mosaic flooring in the lobby .En tant que motif, le designer a choisi un **trilatère** pour le revêtement de sol en mosaïque dans le hall.

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Couleurs et Formes - Polygones