KnowraParallel linesLinked fromLinked fromThe 17 pages that link to Parallel lines, each with the reason it gives.All 17Broader topic 1Related 10Narrower topic 1Compared with 5Linear perspectiveRelated: Their projected images can converge even though the spatial lines remain parallel.EratosthenesRelated: The Sun’s rays were treated as parallel when comparing their angles at the two cities.RectangleRelated: Each pair of opposite rectangle sides lies on parallel lines.SquareRelated: Each pair of opposite square sides is parallel.QuadrilateralRelated: Whether opposite sides are parallel separates parallelograms and trapezoids from other quadrilaterals.ParallelogramRelated: The defining condition requires each pair of opposite sides to lie on parallel lines.Cavalieri's principleRelated: The planar form uses families of parallel lines to slice figures at corresponding levels.TransversalRelated: A transversal crossing parallel lines produces especially useful angle relationships.Intercept theoremRelated: Their equal angles with each transversal make corresponding triangles similar.Horizontal line (geometry)Related: Horizontal lines share a direction with the coordinate system's horizontal axis.