|
gptkbp:instanceOf
|
river
|
|
gptkbp:area
|
(2(1 + √2)a²)
(2(1 + √2)a²) for side length a
|
|
gptkbp:associated_with
|
8-fold rotational symmetry
|
|
gptkbp:canCreate
|
False
|
|
gptkbp:chemicalFormula
|
n(n-3)/2
8a
a/(2sin(π/8))
a/(2tan(π/8))
|
|
gptkbp:coordinates
|
8
|
|
gptkbp:countryOfOrigin
|
Greek_'okta'_meaning_eight
|
|
gptkbp:diameter
|
8a for side length a
|
|
gptkbp:examples
|
Stop sign
|
|
gptkbp:firstAwarded
|
gptkb:Ancient_Greece
|
|
gptkbp:hasArea
|
(2(1 + √2)a²) for side length a
|
|
gptkbp:hasAwards
|
8
|
|
gptkbp:hasContent
|
8
|
|
gptkbp:hasFacilities
|
20
|
|
gptkbp:hasGoals
|
8
1080 degrees
|
|
gptkbp:hasNationality
|
8
|
|
gptkbp:hasPersonnel
|
8a for side length a
|
|
gptkbp:hasTouristAttraction
|
True
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Octagon
|
|
gptkbp:insignia
|
1080 degrees
|
|
gptkbp:isCompatibleWith
|
True
|
|
gptkbp:isEngagedIn
|
True
|
|
gptkbp:isExemplifiedBy
|
True
|
|
gptkbp:isFoundIn
|
Traffic signs
Certain flower shapes
|
|
gptkbp:isLocatedNear
|
True
|
|
gptkbp:isPopularAmong
|
True
|
|
gptkbp:isRegulatedBy
|
True
|
|
gptkbp:isUsedFor
|
Architecture and urban planning
Board games with octagonal boards
|
|
gptkbp:mayHave
|
Triangles
|
|
gptkbp:notableEvent
|
The_Octagon_House_in_Washington,_D.C.
|
|
gptkbp:relatedPatent
|
gptkb:Decagon
Hexagon
|
|
gptkbp:relatedTo
|
Tessellation
|
|
gptkbp:shape
|
Square
True
Equilateral and equiangular
|
|
gptkbp:theory
|
Convex polygon
|
|
gptkbp:usedBy
|
Octagonal_arenas
|
|
gptkbp:usedFor
|
Octagonal patterns
|
|
gptkbp:uses
|
gptkb:Octagonal_dice
|
|
gptkbp:utilizes
|
Pavilions
|