KnowraRight triangleLinked fromLinked fromThe 28 pages that link to Right triangle, each with the reason it gives.All 28Broader topic 14Related 9Narrower topic 4Compared with 1SineRelated: In an acute angle’s right triangle, sine is opposite side divided by hypotenuse.Trigonometric functionsRelated: Ratios of its sides give the basic right-triangle definitions of sine, cosine, and tangent.OrthocenterRelated: Its orthocenter is the vertex at the right angle, where two altitudes coincide with the legs.Inverse trigonometric functionsRelated: Inverse ratios recover acute angles from side lengths in right-triangle problems.Distance formulaRelated: The coordinate differences form its legs, and the point-to-point distance is its hypotenuse.Triangle centersRelated: Its circumcenter is the midpoint of the hypotenuse, while its orthocenter is the right-angle vertex.Scalene triangleRelated: A right triangle can also be scalene; the labels describe different properties.Sine and cosineRelated: For acute angles, sine and cosine are ratios of side lengths in a right triangle.Pythagorean trigonometric identityRelated: Its side ratios define sine and cosine, while the Pythagorean theorem links those ratios.