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Is Hexagon a 5-Sided Shape?

Gregory Jul 05, 2026

Many people find themselves asking is hexagon 5 sides when they first encounter this shape in geometry class or design software, and this confusion stems from mixing up polygon names.

an octagon is shown in the shape of a hexagonal pentagon, with one side missing
an octagon is shown in the shape of a hexagonal pentagon, with one side missing

A hexagon is a specific two-dimensional shape with six straight sides and six angles, making it fundamentally different from a pentagon, which has five sides, so the direct answer to this question is no.

a black and white drawing of a hexagonal pentagon with one side facing the viewer
a black and white drawing of a hexagonal pentagon with one side facing the viewer

Understanding Basic Polygon Definitions

To clear up this common misconception, it is essential to look at the strict mathematical definitions of polygons based on their side count.

four hexagons with one side missing and the other half missing to be cut out
four hexagons with one side missing and the other half missing to be cut out

The prefix "hexa-" comes from Greek meaning six, which immediately tells us that this shape must have six components, while a shape with five sides uses the prefix "penta-" for five.

What Truly Defines a Hexagon

Free Printable Hexagon Shape (PDF Downloads)
Free Printable Hexagon Shape (PDF Downloads)

A true hexagon is a closed geometric figure with six edges and six vertices, and this structural requirement is non-negotiable in Euclidean geometry.

When you visualize a classic honeycomb cell or a stop sign that has been cut to have straight sides, you are actually looking at a shape that contains six lines, not five.

Pentagon vs Hexagon Comparison

Playing with Hexagons
Playing with Hexagons

In direct contrast, a pentagon is defined specifically as a polygon with five sides and five angles, which is exactly where the confusion lies for many learners.

If someone asks is hexagon 5 sides, they are likely thinking of a pentagon, and recognizing the difference in side count is the key to mastering these basic geometric terms.

Real-World Examples and Visual Identification

Stepping away from abstract definitions helps to solidify why these shapes are not interchangeable in the physical world.

3 inch hexagon template free
3 inch hexagon template free

Looking at architectural structures or everyday objects allows you to quickly identify whether a design is using six-sided symmetry or five-sided symmetry.

Common Hexagon Structures in Nature and Design

Hexagon Calculator
Hexagon Calculator
a black and white hexagonal shape on a white background
a black and white hexagonal shape on a white background
Blank Hexagon Templates | Printable Hexagon Shape PDFs
Blank Hexagon Templates | Printable Hexagon Shape PDFs
Blank Hexagon Templates | Printable Hexagon Shape PDFs
Blank Hexagon Templates | Printable Hexagon Shape PDFs
a red and white cube is shown in the shape of a rectangle, with two sides facing each other
a red and white cube is shown in the shape of a rectangle, with two sides facing each other
Regular Polygon Problems, 3
Regular Polygon Problems, 3
Sides and Corners – Polygons –  Triangle, Square, Pentagon, Hexagon, Octagon – Number of sides – Number of corners – 1 Worksheet / FREE Printable Worksheets
Sides and Corners – Polygons – Triangle, Square, Pentagon, Hexagon, Octagon – Number of sides – Number of corners – 1 Worksheet / FREE Printable Worksheets
the hexagonal pentagon is shown in black and white, with three sides facing each other
the hexagonal pentagon is shown in black and white, with three sides facing each other
the hexagonal structure is shown in black and white, with no lines on it
the hexagonal structure is shown in black and white, with no lines on it
hexagonal tecnología concepto hexágono seis artículos abeja Sota geometría seis de un lado polígono contorno contorno línea icono negro color vector ilustración imagen Delgado plano estilo
hexagonal tecnología concepto hexágono seis artículos abeja Sota geometría seis de un lado polígono contorno contorno línea icono negro color vector ilustración imagen Delgado plano estilo
the polygon names are shown in black and white
the polygon names are shown in black and white
Google Image Result for https://mathmonks.com/wp-content/uploads/2020/07/Properties-of-a-Hexagon.jpg
Google Image Result for https://mathmonks.com/wp-content/uploads/2020/07/Properties-of-a-Hexagon.jpg
Shapes – Polygons – Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon-  11 Worksheets / FREE Printable Worksheets
Shapes – Polygons – Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon- 11 Worksheets / FREE Printable Worksheets
four hexagonal shapes are shown in black and white
four hexagonal shapes are shown in black and white
the four hexagonals are shown with blue dots in each corner and one is missing
the four hexagonals are shown with blue dots in each corner and one is missing
the hexagon regular and hexagon irregular shapes are shown in this diagram
the hexagon regular and hexagon irregular shapes are shown in this diagram
an octagon is shown with numbers on it
an octagon is shown with numbers on it
Icônes gratuites Hexagone conçues par Roundicons Premium
Icônes gratuites Hexagone conçues par Roundicons Premium
hexagon shape
hexagon shape
the hexagonal structure is shown in black and white, with no lines on it
the hexagonal structure is shown in black and white, with no lines on it

Nature provides clear examples of the hexagon, such as the structure of snowflakes and the pattern of basalt columns, all showcasing a six-sided regularity.

Engineers also favor this six-sided pattern for nuts and bolts because it offers superior grip and load distribution compared to shapes with fewer sides.

Pentagon Applications and Misidentifications

The most famous man-made example of a pentagon is the Pentagon building in the United States, which clearly has five exterior walls.

Sometimes, irregular stars or certain home plates are mistakenly labeled as hexagons, but once you count the sides, it becomes obvious that they are five-sided figures.

Mathematical Properties and Calculations

The distinction between these shapes becomes critical when applying geometric formulas for area and perimeter.

Using the wrong side count in calculations will lead to significant errors in determining the total space or boundary length of the figure.

Angles and Symmetry Differences

A regular hexagon has internal angles of 120 degrees, and these angles sum up to 720 degrees, which is specific to six-sided polygons.

Conversely, a regular pentagon has internal angles of 108 degrees, summing to 540 degrees, highlighting how the number of sides directly changes the angular properties.

Formulas Rely on Side Count

When mathematicians calculate the area of a regular hexagon, they rely on formulas that incorporate the number six, often involving equilateral triangles.

Similarly, the area of a pentagon uses formulas derived from five-sided divisions, proving that the initial answer to is hexagon 5 sides fundamentally alters every subsequent mathematical step.

Grasping this distinction empowers you to accurately analyze shapes in art, architecture, and natural patterns without hesitation.