2D Shapes Names in English with Their Pictures

Learning about 2D shapes is an important part of early education. Shapes are everywhere around us — in books, buildings, toys, and even in nature. A 2D shape is a flat figure that has length and width but no thickness, such as a circle, square, or triangle. Knowing the names of these shapes helps children recognize patterns and understand the world better. In this article, we will learn the names of 2D shapes in English with their pictures to make learning simple, clear, and enjoyable for kids.

Table of Contents

List of 2D Shapes Names in English

Circle
Oval
Triangle
Equilateral Triangle
Isosceles Triangle
Scalene Triangle
Right Triangle
Acute Triangle
Obtuse Triangle
Square
Rectangle
Parallelogram
Rhombus
Trapezium
Trapezoid
Kite
Pentagon
Hexagon
Heptagon
Octagon

2D Shapes Names in English and Images

Circle
A round shape with no corners or edges, where every point is the same distance from the center.
Oval
A shape that looks like a stretched circle, wider on one side.
Triangle
A closed shape with three sides and three corners (angles).
Equilateral Triangle
A triangle where all three sides and all three angles are equal.
Isosceles Triangle
A triangle with two sides of equal length and two equal angles.
Scalene Triangle
A triangle with all sides of different lengths and all angles different.
Right Triangle
A triangle with one angle exactly 90 degrees.
Rectangle
A shape with four sides, where opposite sides are equal and all angles are 90 degrees.
Parallelogram
A shape with four sides, where opposite sides are equal and parallel.
Rhombus
A parallelogram with all four sides equal in length.
Trapezium
A quadrilateral with at least one pair of parallel sides (used in British English).
Trapezoid
A quadrilateral with exactly one pair of parallel sides (used in American English).
Kite
A four-sided shape with two pairs of touching equal sides.
Pentagon
A shape with five sides and five corners.
Hexagon
A shape with six sides and six corners.
Heptagon
A shape with seven sides and seven corners.
Octagon
A shape with eight sides and eight corners.

2D Shapes Names in English and Images

Basic 2D Shapes Names in English

Nonagon
Decagon
Hendecagon
Dodecagon
Tridecagon
Tetradecagon
Pentadecagon
Hexadecagon
Chord Shape
Octadecagon
Enneadecagon
Icosagon
Concave Polygon
Convex Polygon
Regular Polygon
Irregular Polygon
Quadrilateral
Scalene Quadrilateral
Cyclic Quadrilateral
Tangential Quadrilateral

80 2D Shapes Names in English with their Pictures

Nonagon
A polygon with nine sides and nine corners.
Decagon
A polygon that has ten sides and ten corners.
Hendecagon
A polygon with eleven sides and eleven corners.
Dodecagon
A polygon made up of twelve sides and twelve corners.
Tridecagon
A polygon with thirteen sides and thirteen corners.
Tetradecagon
A polygon that has fourteen sides and fourteen corners.
Pentadecagon
A polygon with fifteen sides and fifteen corners.
Hexadecagon
A polygon with sixteen sides and sixteen corners.
Chord Shape
A shape formed inside a circle by drawing a straight line (chord) between two points on its boundary.
Octadecagon
A polygon with eighteen sides and eighteen corners.
Enneadecagon
A polygon that has nineteen sides and nineteen corners.
Icosagon
A polygon with twenty sides and twenty corners.
Concave Polygon
A polygon where at least one angle is larger than 180° and part of it looks “pushed inward.”
Convex Polygon
A polygon where all angles are less than 180° and it looks “pushed outward.”
Regular Polygon
A polygon where all sides and all angles are equal.
Irregular Polygon
A polygon where sides and angles are not all equal.
Quadrilateral
A polygon with four sides and four corners.
Scalene Quadrilateral
A quadrilateral with all four sides of different lengths.
Cyclic Quadrilateral
A quadrilateral whose corners all lie on the boundary of a circle.
Tangential Quadrilateral
A quadrilateral where a circle can be drawn inside it, touching all four sides.

2D Shapes Names in English with their Pictures

All 2D Shape Name in English

Star Polygon
Star Pentagon
Star Hexagon
Star Octagon
Heart Shape
Crescent
Semi-circle
Quarter Circle
Sector
Segment
Annulus
Ellipse
Oblong
Arrowhead
Chevron
Cross Shape
Plus Shape
Diamond
Shield Shape
Leaf Shape

Shape Name in English and Images

Star Polygon
A polygon made in the shape of a star by connecting non-adjacent corners of a regular polygon.
Star Pentagon
A five-pointed star shape formed inside a pentagon.
Star Hexagon
A six-pointed star shape formed by overlapping two triangles.
Star Octagon
An eight-pointed star shape made by overlapping two squares or connecting octagon points.
Heart Shape
A rounded shape with two curves at the top and a point at the bottom, often used as a symbol of love.
Crescent
A moon-like curved shape, wide on one side and narrow on the other.
Semi-circle
Half of a circle cut along its diameter.
Quarter Circle
One-fourth part of a circle, shaped like a slice.
Sector
A part of a circle made by two radii and the arc between them (like a “pizza slice”).
Segment
A part of a circle cut off by a chord (smaller than a sector).
Annulus
A ring-shaped figure made by two circles with different sizes, one inside the other.
Ellipse
A stretched circle that looks like an oval.
Oblong
A rectangle that is longer in one direction than the other.
Arrowhead
A triangular shape that looks like the tip of an arrow.
Chevron
A V-shaped figure, often seen in signs or military symbols.
Cross Shape
Two straight lines crossing each other at right angles.
Plus Shape
A cross where all arms are equal in length, like the math plus sign (+).
Diamond
A four-sided shape with equal sides and opposite angles equal, also called a rhombus.
Shield Shape
A shape resembling a protective shield, often curved at the top and pointed at the bottom.
Leaf Shape
A shape similar to a plant leaf, usually oval with a pointed end.

Shapes Names in English and Images

Common Shapes Names in English

Lune
Polygon
Cardioid
Heptagram
Octagram
Decagram
Enneagram
Dodecagram
Möbius Strip (2D surface)
Reuleaux Triangle
Reuleaux Polygon
Trapezium Isosceles
Right Trapezium
Scalene Trapezium
Arrow Polygon
Parallelogram Rhomboid
Tetragon
Isotoxal Polygon
Equiangular Polygon
Deltoid

All Shape Name in English and Images

Lune
A moon-shaped figure formed by two circular arcs that overlap.
Polygon
A flat closed shape made with straight lines (sides).
Cardioid
A heart-shaped curve made when a circle rolls around another circle of the same size.
Heptagram
A star shape with seven points, made from a heptagon.
Octagram
An eight-pointed star formed by connecting points of an octagon.
Decagram
A ten-pointed star created from a decagon.
Enneagram
A nine-pointed star figure made from an enneagon.
Dodecagram
A twelve-pointed star created from a dodecagon.
Möbius Strip (2D surface)
A special shape with only one side and one edge, made by twisting a strip and joining its ends.
Reuleaux Triangle
A curved triangle shape where each side is an arc, not a straight line.
Reuleaux Polygon
A polygon with curved sides, all having constant width like the Reuleaux triangle.
Trapezium Isosceles
A trapezium (one pair of parallel sides) with the other two sides equal in length.
Right Trapezium
A trapezium that has one right angle.
Scalene Trapezium
A trapezium where no two sides are equal.
Arrow Polygon
A concave polygon shaped like an arrowhead.
Parallelogram Rhomboid
A parallelogram where opposite sides are equal and parallel, but not all sides are the same length.
Tetragon
Another name for a quadrilateral (any 4-sided polygon).
Isotoxal Polygon
A polygon where all edges and angles repeat in the same pattern, giving it full symmetry.
Equiangular Polygon
A polygon where all angles are equal, though sides may differ in length.
Deltoid
A kite-shaped quadrilateral with two pairs of adjacent equal sides.