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In graph Frontier
MathematicsGeometryEstablished

Perimeter

A perimeter is the length of a closed boundary that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional line.

PerimeterCircumferencePiCircleIrrational numberSymmetryAreaReal numberGolden ratio

At a glance

Type
scale
Disciplines 2
MathematicsGeometry
Mental models 0
—
Role in the graph
Leaf concept

Key signals

Cross-disciplinary reach
Disciplines
2
  • Mathematics
  • Geometry
Evidence & development

Dependencies

What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.

System context

Circumferenceis aPerimeterEstablished

Open Circumference →

circumference is a kind of perimeter.

Mechanism: Circumference is the perimeter of a circle — the distance once around its curved edge.

Sources:

Structural role & consequence

Interpreted from the current atlas graph — what the connections mean, not just how many there are.

  • Currently dark in the atlas: no key date stored · 1 of 1 of its relations lack claim-level evidence.

    atlas representation · Describes the current Thinking OS representation, not the state of the world.

  • All 1 of its relationships stay within its own discipline — a field-specific concept in the current atlas.

    structural · Structural graph analysis — not a claim of importance, causation or history.

0%

cross-field
1 within-field, 0 cross-field

0 of 1 relations carry evidence · concept has a verified source

Strengths & constraints

Constraints

  • Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
  • No dated history stored — the atlas records no key date for this concept. atlas representation

Conditions

  • Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural

Seen through each discipline

How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.

Mathematics

Through this lens it connects to Circumference.

Perimeter through the Mathematics lens →

Geometry

Through this lens it connects to Circumference.

Perimeter through the Geometry lens →

Formula

perimeter

Source: Wikidata

Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.

The scientific picture
  • Connects 1 other ideas across 2 disciplines.
  • Most of its connections are of the “Kind & structure” kind.

Derived from the graph’s real structure — observations, not a score.

Sources