Polygon Shapes Names in English with Their Pictures

Polygon shapes are closed, two-dimensional figures made from straight line segments joined together. They come in many forms, such as triangles, squares, pentagons, hexagons, and octagons, and are widely used in mathematics, geometry, architecture, and design. Learning the names of polygon shapes helps improve both math skills and English vocabulary while making it easier to recognize shapes in everyday life. In this article, you will learn polygon shapes names in English with clear pictures, helping kids, students, teachers, and English learners identify, understand, and remember these geometric shapes with confidence.

Table of Contents

What Are Polygon Shapes?

A polygon is a closed two-dimensional (2D) shape made entirely of straight line segments. Each line segment is called a side, and the point where two sides meet is called a vertex (plural: vertices).

A polygon must:

Be completely closed
Have only straight sides
Have at least three sides
Not contain curved edges

Examples of polygons include triangles, squares, pentagons, hexagons, and octagons.

List of Polygon Shapes Names

Triangle
Square
Rectangle
Pentagon
Hexagon
Heptagon
Octagon
Nonagon
Decagon
Dodecagon
Trapezoid
Rhombus
Kite
Quad
Trigon
Tetragon
Pentagon Star
Hexagram
Octagram
Diamond

Names of Polygon Shapes with Pictures

Triangle
A polygon shape made with three straight connected sides.
Square
A four-sided polygon with equal sides and equal angles.
Rectangle
A four-sided shape with opposite sides equal and straight angles.
Pentagon
A polygon shape formed using five straight connected sides.
Hexagon
A six-sided polygon commonly seen in honeycomb patterns.
Heptagon
A polygon shape containing seven straight connected sides.
Octagon
An eight-sided polygon shape often used in traffic signs.
Nonagon
A polygon figure formed with nine straight sides.
Decagon
A polygon shape having ten equal or unequal sides.
Dodecagon
A polygon figure containing twelve straight connected sides.
Trapezoid
A four-sided shape with one pair of parallel sides.
Rhombus
A slanted four-sided polygon with all sides equal.
Kite
A four-sided polygon with two pairs of equal sides.
Quad
A short name used for four-sided polygon shapes.
Trigon
Another geometric name commonly used for triangle shapes.
Tetragon
A polygon shape formed using four straight sides.
Pentagon Star
A star-shaped polygon formed inside or around pentagon figure.
Hexagram
A six-pointed star shape made using overlapping triangles.
Octagram
An eight-pointed star polygon with symmetrical design.
Diamond
A diamond-shaped polygon with slanted equal-length sides.

Names of Polygon Shapes with Pictures

Chevron
Arrow
Cross
Star
Polygon
Multiagon
Enneagon
Icosagon
Triacontagon
Polyline
Convex
Concave
Regular
Irregular
Parallelogram
Scalene
Isosceles
Equilateral
Right Triangle
Quadrilateral

Types of Polygon Shapes Names with Pictures

Chevron
A V-shaped polygon pattern commonly used in designs.
Arrow
A pointed polygon shape representing direction or movement.
Cross
A polygon figure formed with intersecting straight sections.
Star
A pointed polygon shape with connected outer corners.
Polygon
A closed shape made completely from straight connected lines.
Multiagon
A polygon shape having many straight connected sides.
Enneagon
Another geometric name used for nine-sided polygon shapes.
Icosagon
A polygon figure formed using twenty straight sides.
Triacontagon
A polygon shape containing thirty connected straight sides.
Polyline
A connected series of straight line segments forming shape.
Convex
A polygon shape with all corners pointing outward.
Concave
A polygon shape with one corner bending inward.
Regular
A polygon having equal sides and equal interior angles.
Irregular
A polygon shape with unequal sides or unequal angles.
Parallelogram
A four-sided polygon with opposite sides parallel and equal.
Scalene
A triangle shape with all sides having different lengths.
Isosceles
A triangle with two equal sides and equal base angles.
Equilateral
A triangle shape having all sides and angles equal.
Right Triangle
A triangle containing one angle exactly equal to ninety degrees.
Quadrilateral
A polygon shape made using four straight connected sides.

Types of Polygon Shapes Names with Pictures

Properties of Common Polygon Shapes

Polygon	Sides	Vertices	Angles
Triangle	3	3	3
Quadrilateral	4	4	4
Pentagon	5	5	5
Hexagon	6	6	6
Heptagon	7	7	7
Octagon	8	8	8
Nonagon	9	9	9
Decagon	10	10	10

Polygon Shapes Found in Everyday Life

Object	Polygon Shape
Pizza slice	Triangle
Window	Rectangle
Floor tile	Square
Honeycomb	Hexagon
Stop sign	Octagon
Kite	Kite
Wall decoration	Pentagon
Tabletop	Hexagon
Picture frame	Rectangle
Quilt pattern	Rhombus

Parts of a Polygon

Every polygon has several important parts.

Part	Description
Side	A straight line forming the boundary
Vertex	The point where two sides meet
Angle	The space formed by two sides
Interior Angle	The angle inside the polygon
Exterior Angle	The angle outside the polygon
Diagonal	A line joining two non-adjacent vertices

Polygon Shapes Vocabulary

Word	Meaning
Polygon	A closed shape with straight sides
Side	A straight edge of a polygon
Vertex	A corner of a polygon
Angle	The space between two sides
Regular	All sides and angles are equal
Irregular	Sides or angles are unequal
Convex	No inward angles
Concave	At least one inward angle
Diagonal	A line joining two non-adjacent corners
Perimeter	The total distance around a polygon

Polygon Shapes in Example Sentences

Polygon Shape	Example Sentence
Triangle	The road sign forms a triangle.
Square	She drew a perfect square on the board.
Rectangle	The classroom window is a rectangle.
Pentagon	The child colored a pentagon in the workbook.
Hexagon	Bees build their honeycomb in hexagon shapes.
Heptagon	The teacher showed a heptagon during the lesson.
Octagon	The stop sign is an octagon.
Nonagon	We learned about the nonagon in geometry class.
Decagon	The student counted the sides of the decagon carefully.
Rhombus	The quilt features a colorful rhombus pattern.