KnowraPythagorean theoremLinked fromLinked fromThe 63 pages that link to Pythagorean theorem, each with the reason it gives.All 63Broader topic 8Related 47Narrower topic 1Compared with 7Law of cosinesCompared with: When the included angle is 90°, the law reduces exactly to this theorem.SemiperimeterCompared with: Unlike the semiperimeter, it relates side lengths through squares rather than their sum.Law of sinesCompared with: It solves right triangles through side lengths, while the law of sines applies to triangles of any shape.Parallelogram lawCompared with: It is the right-angle special case behind the law’s diagonal-length relation.Stewart's theoremCompared with: It is a simpler special-purpose length relation; Stewart’s theorem handles a general cevian partition.Weitzenböck's inequalityCompared with: Both involve squared side lengths, but this theorem is an equality restricted to right triangles.Anne's theoremCompared with: Its familiar name and precise statement show how an established theorem is identifiable.