Colors and Shapes - Polygons

Read this lesson to learn the names of polygons in English, such as "convex polygon", "heptagon" and "hendecagon".

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[noun]

a geometric shape with five angles and five straight sides

Ex: She drew pentagon on the chalkboard to illustrate its shape to the students .

[noun]

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

[noun]

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

[noun]

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

Ex: The child 's drawing featured a perfectly octagon.

[noun]

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

Ex: The children were challenged to draw a decagon during their geometry class .

[noun]

a five-pointed star

[noun]

a three-sided geometric shape

Ex: As a pattern , the designer chose trilateral for the mosaic flooring in the lobby .

Colors and Shapes