KnowraSimilar trianglesLinked fromLinked fromThe 18 pages that link to Similar triangles, each with the reason it gives.All 18Broader topic 1Related 13Narrower topic 3Compared with 1MagnificationNarrower topic: Optical magnification often follows from proportional sides in ray diagrams.Tangent–secant theoremNarrower topic: The tangent–secant relation can be derived by identifying similar triangles formed by a tangent and secant.Haruki's theoremNarrower topic: Angle-chasing often reduces circle geometry length claims to proportional sides.