KnowraTriangle centersLinked fromLinked fromThe 7 pages that link to Triangle centers, each with the reason it gives.All 7Broader topic 1Narrower topic 6Perpendicular bisectorNarrower topic: The circumcenter is one triangle center, located using the side bisectors.Feuerbach's theoremNarrower topic: The theorem yields a notable relation among several triangle centers.Incenter–excenter lemmaNarrower topic: The incenter and excenters are members of this broader family.Lester's theoremNarrower topic: Lester’s theorem relates five specially defined triangle centers.Reuschle's theoremNarrower topic: The theorem relates distinguished points associated with a triangle.Van Lamoen circleNarrower topic: The original triangle’s centroid is the center of the Van Lamoen circle.