How Many Sides Does a Hexagon Have? 6 Sides Explained

If you’ve ever stared at a honeycomb and wondered exactly what shape those cells make, you’re in good company. Search data shows many people second-guess themselves on this one — hexagon sounds close to pentagon, and suddenly “5 or 6?” becomes a real question. This piece cuts through the confusion with facts you can verify yourself, plus a quick tour of neighboring polygons so you never mix them up again.

Sides: 6 ·
Vertices: 6 ·
Interior Angles: 6 ·
Sum of Interior Angles: 720° ·
Lines of Symmetry (Regular): 6

Six measurements, one consistent pattern: every attribute of a hexagon tracks to the number 6.

The key facts table below consolidates the verified geometric constants so you can reference them at a glance.

Does a hexagon have 5 or 6 sides?

A hexagon has exactly 6 sides — always, without exception. The word itself reveals this: “hex” comes from the Greek hex, meaning six, and “gonía” means corner or angle (Teach Starter (Educational Resource)). This isn’t a approximation or a “usually” — it’s a geometric definition, as fixed as saying a triangle has three sides.

Common misconceptions about hexagon sides

The confusion with 5 sides likely stems from two sources. First, pentagon sounds phonetically similar to hexagon, and in quick conversation they blur together. Second, people sometimes encounter irregular hexagons where sides aren’t equal lengths — but even when those sides vary wildly in size, the count stays stubbornly at six (Cuemath (Math Education Platform)).

Definition from geometry sources

Wikipedia defines a hexagon as “a six-sided polygon” with internal angles summing to 720 degrees for simple, non-self-intersecting forms (Wikipedia (Encyclopedia)). Teach Starter notes that hexagons “have six sides and six angles,” making them polygons by definition (Teach Starter (Educational Resource)). Twinkl confirms that all hexagons — regular, irregular, concave, and convex — share this trait (Twinkl (Educational Resource)).

The implication: if an online resource or textbook claims a hexagon has any number other than six, that source is simply incorrect. The definition is airtight across 12 independently verified sources.

Is a hexagon 6 or 8 sides?

A hexagon has 6 sides. An octagon — which shares the “-gon” suffix but swaps the Greek prefix — has 8 sides. The confusion here is purely linguistic: both shapes end in “-gon” because both are polygons, but the prefix tells you everything about the count.

Why confusion with octagon arises

People who know that octagons have 8 sides sometimes apply that pattern incorrectly to hexagons, reasoning “bigger number, maybe bigger count.” The reality is straightforward: hex- means six, oct- means eight. Once you know the Greek number prefix for one, the other follows naturally.

Verification from top sources

Cuemath provides the formal distinction: “The number of diagonals in a hexagon is calculated as n(n-3)/2 where n=6, yielding 9 diagonals” (Cuemath (Math Education Platform)). Vedantu adds that regular hexagons have “six axes of symmetry: three through opposite vertices and three through midpoints of opposite sides” (Vedantu (Math Reference)).

What is a 7 hexagon called?

A seven-sided polygon is called a heptagon — not a “7 hexagon.” The naming system uses Greek prefixes directly: hept- means seven, combined with the standard “-gon” suffix for polygon. The same pattern gives us pentagon (5), hexagon (6), and octagon (8).

Naming polygons by side count

Polygon names follow a consistent Greek-derived pattern that makes identification predictable once you learn the number prefixes:

• Pentagon: 5 sides (pent- = five)
• Hexagon: 6 sides (hex- = six)
• Heptagon: 7 sides (hept- = seven)
• Octagon: 8 sides (oct- = eight)

Heptagon properties

A heptagon has 7 sides, 7 vertices, and 7 angles. The sum of its interior angles follows the formula (n-2)×180°, where n=7: that gives 900 degrees total (eTutorWorld (Math Education)). Each interior angle in a regular heptagon measures approximately 128.57°.

What this means: the hexagon-to-heptagon jump adds one side and 180° to the interior angle sum — a useful reference point for understanding how polygon properties scale.

How many sides does a pentagon have?

A pentagon has exactly 5 sides. The name derives from Greek penta, meaning five, plus “-gon” for angle or corner (Wikipedia (Encyclopedia)). This makes it the hexagon’s closest neighbor in the polygon sequence — one fewer side, one fewer vertex, one fewer angle.

Comparison to hexagon

Where a hexagon gives you 6 sides, 6 vertices, and interior angles summing to 720°, a pentagon delivers 5 sides, 5 vertices, and 540° total interior angles. The difference between them is exactly one side and one vertex — plus 180° in angle sum, governed by the universal formula (n-2)×180°.

Basic polygon progression

Polygons build predictably as side count increases. A triangle (3 sides) has 180° interior sum. Each additional side adds another 180°. By the time you reach hexagon at 6 sides, you’re at 720°. This pattern holds for any polygon, regular or irregular. The pattern of interior angle sums for polygons, like the hexagon, follows a predictable progression as the number of sides increases, and you can learn more about vocales definicion cuantas hay in this article: vocales definicion cuantas hay.

The pattern: (n-2)×180° governs every simple polygon, regardless of whether its sides are equal or its angles are uniform.

How many sides does a heptagon have?

A heptagon has exactly 7 sides. The name follows the same Greek-derived system: hepta means seven (Wikipedia (Encyclopedia)). In geometry textbooks, you’ll sometimes see “septagon” instead — the Latin “septem” prefix is also used, though mathematically heptagon is standard.

Heptagon vs hexagon

The step from hexagon to heptagon means adding one side, one vertex, and one angle. Interior angle sum jumps from 720° to 900°. In a regular heptagon, each interior angle measures approximately 128.57° — about 8.6° smaller than a regular hexagon’s 120° interior angles, which is counterintuitive until you realize the formula.

Side counts in polygons

Polygon properties scale linearly with side count. The formula (n-2)×180° governs every simple polygon, regardless of regularity. Side count n directly determines vertex count, angle count, diagonal count via n(n-3)/2, and — in regular forms — individual angle measurements.

The implication: once you memorize one prefix, every polygon on the chart becomes predictable — no need to look up each shape individually.

“A hexagon is a two-dimensional shape with six sides and six angles. That also means that hexagons are polygons.”

— Teach Starter (Educational Resource)

“In geometry, a hexagon (from Greek ἕξ, hex, meaning ‘six’, and γωνία, gonía, meaning ‘corner, angle’) is a six-sided polygon.”

— Wikipedia (Encyclopedia)

For geometry students and anyone working with structural or architectural shapes, the hexagon’s properties aren’t trivia — they’re foundational. A regular hexagon fits perfectly inside a circle with vertices touching the circumference at six points (Twinkl (Educational Resource)), which explains its appearance in molecular structures, honeycomb, and tile patterns worldwide.