A airplane figure is a geometric number that has no thickness. It lies completely in one plane. Below are instances of different types of plane figures.

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A plane figure deserve to be composed of heat segments, curves, or a mix of the two. Airplane figures are frequently categorized as open up or closed

## Open

The segment or curve of one open figure are not constantly connected. At least one endpoint of one side is not connected to the rest. Heat segments, curves, angles, and also many other shapes space open.

## Closed

The heat segments or curves developing a closed figure are continuous, definition there is no break. The lines/curves must also type a closed an ar to be taken into consideration a close up door shape. A closed figure has area and also perimeter. The adhering to are a few examples.

Closed numbers can be further categorized right into polygonal plane figures and non-polygonal airplane figures.

### Polygonal airplane figures

A polygon is a closed plane figure formed only using line segments. The heat segments are referred to as sides. A polygon has at least three sides. Over there are numerous classifications of polygons; castle are often classified based on the number of sides in the polygon.

Polygon# the sidesShapeTriangle | 3 | |

Quadrilateral | 4 | |

Pentagon | 5 | |

Hexagon | 6 |

An n-sided polygon is dubbed an n-gon.

### Non-polygonal aircraft figures

If any side or component of a plane figure is bent (not straight) that is no a polygon. The two most common types of non-polygonal airplane figures we see in Geometry are a circle and also an ellipse.

CircleA one is a plane figure formed by the collection of every points in a plane that room equidistant from a given, resolved point, called the center.

EllipseAn ellipse is a airplane figure in the shape of an oval. We generally think the it together looking like a "flattened" or "stretched" circle. The figure listed below shows two ellipses.

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While the circle and the ellipse room the most usual non-polygonal airplane figures we check out in Geometry, there are many others. As long as any kind of side or component of a aircraft figure is curved, it is a non-polygonal aircraft figure.