## What is a polygon BBC Bitesize ks2?

Polygons are 2-dimensional shapes with straight sides. The sum of the exterior angles of a polygon is 360°. The interior and exterior angles at each vertex of any polygon add up to 180°. Maths.

### How do you identify a polygon?

A polygon is a two-dimensional closed figure that has three or more straight sides. Any figure with straight edges, such as a triangle or rectangle, is a polygon. Figures that have any curved sides or open sides are not classed as polygons.

#### What is a polygon ks2 definition?

A polygon is a flat two-dimensional shape with straight sides that are fully closed. The sides must be straight, not curved. However, polygons can have any number of sides. The word polygon comes from the Greek “polugonos”.

**What is a regular polygon BBC Bitesize?**

Polygons can be regular or irregular. If the angles are all equal and all the sides are equal length it is a regular polygon.

**What is the sum of a 7 sided polygon?**

Definition of Heptagon Since, heptagon has 7 sides therefore, Sum of interior angles = (n – 2) × 180°

## What is a polygon Year 6?

What is a polygon? A polygon is a closed shape formed with straight sides. Triangles, quadrilaterals, pentagons, hexagons and octagons are all examples of polygons. A regular polygon has sides which are equal in length and equal interior angles.

### What are the 3 characteristics of a polygon?

Properties of Polygons

- The number of sides of the shape.
- The angles between the sides of the shape.
- The length of the sides of the shape.

#### What is polygon in simple words?

A polygon is a closed shape with straight sides. Rectangles, triangles, hexagons, and octagons are all examples of polygons. The word polygon comes from the Greeks, like most terms in geometry, which they invented. It simply means many (poly) angles (gon).

**What is the example of polygon?**

Triangles, hexagons, pentagons, and quadrilaterals are all examples of polygons. The name gives an indication of how many sides the shape has. For example, a triangle consists of three sides while a quadrilateral consists of four sides.

**What is polygon example?**

The most common examples of polygons are the triangle, the rectangle, and the square. In simple words, polygons are plain figures or shapes made up of line segments only. Note: Circles, three-dimensional objects, any shapes that include curves, and any shapes that aren’t closed are not polygons.

## What is the sum of a 5 sided polygon?

540°

In geometry, a pentagon (from the Greek πέντε pente meaning five and γωνία gonia meaning angle) is any five-sided polygon or 5-gon. The sum of the internal angles in a simple pentagon is 540°….Regular pentagons.

Regular pentagon | |
---|---|

Type | Regular polygon |

Edges and vertices | 5 |

Schläfli symbol | {5} |

Coxeter diagram |

### How to identify the different types of polygons?

1 Quadrilaterals. Quadrilaterals have 4 sides and their internal angles add up to 360°. 2 Triangles. Triangles have 3 sides. 3 Irregular polygons. Irregular polygons have sides of different lengths and angles. 4 Regular polygons. There are names for other shapes with sides of the same length.

#### How to recognise 2D shapes in year 4?

A Maths article for Year 4 / P5 on recognising 2D shapes based on their properties, including triangles, quadrilaterals and polygons.

**Which is an example of a 2D shape?**

What are 2D shapes? 2D shapes are everywhere! For example, windows are usually shaped like rectangles and clocks are shaped like circles. 2D shapes are flat and all have different properties.

**How many sides does an irregular polygon have?**

Irregular polygons have sides of different lengths and angles. There are names for other shapes with sides of the same length. These include pentagon which has 5 sides, hexagon has 6, heptagon has 7, and octagon has 8 sides. These shapes are all different, but they are all polygons.