perimeter

Arc length of the path that surrounds an area

EntityQ28474

Also known as circumference · perimeter length · length of perimeter

Subclass of: arc length
, geometric property

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

A perimeter is the length of a closed boundary that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional line. The perimeter of a circle or an ellipse is called its circumference.

Overview

All data

37 statements · 19% with external sources · numbers in brackets are citations

Main Wikidata property: perimeter
ISQ dimension: \mathsf{L}
Different from: boundary
Defining formula: l:=\sum_{k=1}^{n} a_k
In defining formula: l symbol represents: perimeter
a_k symbol represents: edge

On other databases

28 identifiers linking perimeter across the web's reference databases

Data quality

statements

19%

externally sourced

Source last edited September 18, 2026. AIDB refreshes this page daily.

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AIDB. (2026). perimeter (Q28474). Retrieved from https://aidb.si/e/perimeter-Q28474